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Michal Koucky - IEEE Xplore Author Profile

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Author details

Michal Koucky

Also published under: Michal Koucký, M. Koucky

Publications

15

Citations

120

Publications by Year

20012018

Co-Authors:

Anil AdaE. AllenderLukáš BauerJoshua BrodyHarry Buhrman

Show All Co-Authors (38)

Michal Koucky

Also published under: Michal Koucký, M. Koucky

Affiliation

Computer Science Institute of Charles, University Malostranské, Czech Republic

Publication Topics

Complex Communication,
Lower Bound,
Random Variables,
Upper Bound,
Additional Error,
Adequate Coverage,
Adequate Estimation,
Amount Of Information,
Basic Notations,
Bidding,
Binary Search,
Binary Tree

Biography

Michal Koucký received the “Magistr” degree in computer science from Charles University, Prague, in 1998, and a Ph.D. degree in computer science from Rutgers University in 2003. He did his postdoc at McGill University, Montreal, and CWI, Amsterdam. Since 2006 he is a researcher in the Mathematical Institute of the Academy of Sciences of the Czech Republic. Dr. Koucký works in theoretical computer science, his expertise is in circuit complexity, randomized computation, and pseudorandomness.(Based on document published on 15 August 2013).

Publications

15

Citations

120

Publications by Year

20012018

Co-Authors:

Anil Ada
E. Allender
Lukáš Bauer
Joshua Brody
Harry Buhrman

Show All Co-Authors (38)

Author's Published Works

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Showing 1-21 of 21 results

Conferences (17)

Journals (4)

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Xiaoguo Huang(14)
Qianyin Xiang(11)
Quanyuan Feng(11)
Dinghong Jia(9)
Xiao-Guo Huang(4)
School of Information Science and Technology, Southwest Jiaotong University, Chengdu, China(8)
The 41st Institute of CETC, Qingdao, China(3)
Science and Technology on Communication Information Security Control Laboratory, Jiaxing, China(3)
China Electronic Technology Group Corporation No. 36 Institute, Jiaxing, China(3)
Science and Technology on Communication Information Security /Control Laboratory, Jiaxing, China(3)
2021 International Conference on Microwave and Millimeter Wave Technology (ICMMT)(4)
2014 IEEE International Wireless Symposium (IWS 2014)(3)
2016 Progress in Electromagnetic Research Symposium (PIERS)(2)
2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall)(2)
2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)(2)
IEEE(21)
Nanjing, China(4)
Xi'an, China(3)
Harbin, China(2)
Shanghai, China(2)
Xiamen, China(2)
Tunable Filter(11)
Varactor(11)
Resonance Frequency(10)
Center Frequency(9)
Constant Bandwidth(7)

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Results

A Novel Tunable LC Bandpass Filter with Constant Bandwidth based on Mixed Coupling

Longchuan Liu;Qianyin Xiang;Mingye Fu;Dinghong Jia;Xiaoguo Huang;Quanyuan Feng

2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)

Year: 2022 | Conference Paper |

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In this paper, a novel mixed coupling tunable LC bandpass filter (BPF) with constant bandwidth is proposed. The introduction of the magnetic-dominant mixed coupling topology can not only generate transmission zeros for strong out-of-band rejection, but also compensate for bandwidth to achieve constant bandwidth while tuning. Measurement results show that the central frequency tuning range of desig...Show More

A Novel Tunable LC Bandpass Filter with Constant Bandwidth based on Mixed Coupling

Longchuan Liu;Qianyin Xiang;Mingye Fu;Dinghong Jia;Xiaoguo Huang;Quanyuan Feng

2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)

Year: 2022 | Conference Paper |

Leakages Estimation in RF-SIC System Based on Software Defined Radio

Yimeng Sun;Qianyin Xiang;Xiaoguo Huang;Dinghong Jia;Quanyuan Feng

2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)

Year: 2022 | Conference Paper |

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The paper realizes the estimation of the vector characteristics of the circulator leakage channel for in-band full-duplex self-interference cancellation system based on software defined radio technique. The magnitude and phase responses of the circulator leakage channel are measured by using FFT and cross-correlation algorithm, respectively. USRP B210 and GNU Radio are used for the demonstration. ...Show More

Leakages Estimation in RF-SIC System Based on Software Defined Radio

Yimeng Sun;Qianyin Xiang;Xiaoguo Huang;Dinghong Jia;Quanyuan Feng

2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)

Year: 2022 | Conference Paper |

Analysis of Tuning Range and Quality Factor Characteristics and Its Application to Tunable Bandstop Filter

H. B. Lou;S. Y. Chen;J. R. Chen;X. G. Huang

2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)

Year: 2021 | Conference Paper |

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In this paper, the tuning range and quality of four types of varactor-loaded resonators, varactor-loaded λ/2 resonator, varactor-loaded λ/4 resonator, varacor-loaded open-loop resonator, and dual-varactor-loaded resonator, are analyzed. To verify the varactor-loaded λ/4 resonator has largest tuning range and the varactor-loaded λ/2 resonator has largest quality, a dual-band banstop filter based du...Show More

Analysis of Tuning Range and Quality Factor Characteristics and Its Application to Tunable Bandstop Filter

H. B. Lou;S. Y. Chen;J. R. Chen;X. G. Huang

2021 13th International Symposium on Antennas, Propagation and EM Theory (ISAPE)

Year: 2021 | Volume: Volume1 | Conference Paper |

Key Metrics Analysis of Rydberg Microwave Receivers

Jiarui Chen;Xiaoguo Huang;Menglei Zhu;Guangqi Zhen;Hongbin Lou;Qi Zhang

2021 Photonics & Electromagnetics Research Symposium (PIERS)

Year: 2021 | Conference Paper |

Cited by: Papers (1)

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Rydberg atoms are atoms in their highly excited energy states. The physical properties of Rydberg atoms in the presence of external fields play an important role in quantum precision measurement. In recent years, radio-frequency electric field sensing based on Rydberg atoms has attracted significant interest. It is widely recognized as an electromagnetic sensing system fundamentally different from...Show More

Key Metrics Analysis of Rydberg Microwave Receivers

Jiarui Chen;Xiaoguo Huang;Menglei Zhu;Guangqi Zhen;Hongbin Lou;Qi Zhang

2021 Photonics & Electromagnetics Research Symposium (PIERS)

Year: 2021 | Conference Paper |

Self-Interference Cancellation Circuit With Improved Transmission Power Efficiency Based On Unequal Power Divider

Huimin Li;Qianyin Xiang;Xiaoguo Huang;Dinghong Jia;Quanyuan Feng

2021 International Conference on Microwave and Millimeter Wave Technology (ICMMT)

Year: 2021 | Conference Paper |

Cited by: Papers (3)

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The paper proposes a self-interference cancellation (SIC) architecture based on unequal power divider. The transmission efficiency of SIC is investigated. A power divider with unequal power dividing ratio is used in the SIC for improving transmission efficiency of circulator isolated transceiver. A four-tap SIC circuit was designed and fabricated. Measurement results show that 60dB isolation is ac...Show More

Self-Interference Cancellation Circuit With Improved Transmission Power Efficiency Based On Unequal Power Divider

Huimin Li;Qianyin Xiang;Xiaoguo Huang;Dinghong Jia;Quanyuan Feng

2021 International Conference on Microwave and Millimeter Wave Technology (ICMMT)

Year: 2021 | Conference Paper |

Phased Array Full-Duplex for Concurrent Multifunction: Architecture and Implementation

Shunyang Chen;Jiarui Chen;Xiaoguo Huang;Linglu Chen;Qi Zhang;Binhui Chen;Menglei Zhu

2021 International Conference on Microwave and Millimeter Wave Technology (ICMMT)

Year: 2021 | Conference Paper |

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In this article, the realization of concurrent multifunction in phased array full-duplex platforms is discussed. For modern complex electromagnetic environment, an efficient architecture is needed to accomplish the concurrent working of several different functions, such as communication, radar, spectrum sensing and so on. First, we establish a novel architecture based on the phased array system to...Show More

Phased Array Full-Duplex for Concurrent Multifunction: Architecture and Implementation

Shunyang Chen;Jiarui Chen;Xiaoguo Huang;Linglu Chen;Qi Zhang;Binhui Chen;Menglei Zhu

2021 International Conference on Microwave and Millimeter Wave Technology (ICMMT)

Year: 2021 | Conference Paper |

An Optimal Beamforming Model for Aperture-Level Phased Array Full-Duplex

Jiarui Chen;Shunyang Chen;Xiaoguo Huang;Qi Zhang;Menglei Zhu

2021 International Conference on Microwave and Millimeter Wave Technology (ICMMT)

Year: 2021 | Conference Paper |

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Full-duplex, which aims to simultaneously transmitting and receiving over the same band, together with phased array antennas play fundamental roles in next-generation wireless communication systems. The combination of them, phased array fullduplex, is widely accepted as a promising way for realizing practical full-duplex communications. However, diversified application scenarios and rapidly grown ...Show More

An Optimal Beamforming Model for Aperture-Level Phased Array Full-Duplex

Jiarui Chen;Shunyang Chen;Xiaoguo Huang;Qi Zhang;Menglei Zhu

2021 International Conference on Microwave and Millimeter Wave Technology (ICMMT)

Year: 2021 | Conference Paper |

Tunable Cascaded Trisection Bandpass Filter with Constant Absolute Bandwidth

JingJing Yang;Qianyin Xiang;Dinghong Jia;Xiaoguo Huang;Quanyuan Feng

2021 International Conference on Microwave and Millimeter Wave Technology (ICMMT)

Year: 2021 | Conference Paper |

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A novel cascade trisection (CT) coupling structure based on half-wavelength resonators is proposed for designing constant absolute bandwidth (CABW) tunable bandpass filters. Third-order tunable bandpass filter (BPF) which can realize CABW and a high side cross coupling transmission zero (Tz) is designed based on the proposed CT structure. Measurement results show that the central frequency tuning ...Show More

Tunable Cascaded Trisection Bandpass Filter with Constant Absolute Bandwidth

JingJing Yang;Qianyin Xiang;Dinghong Jia;Xiaoguo Huang;Quanyuan Feng

2021 International Conference on Microwave and Millimeter Wave Technology (ICMMT)

Year: 2021 | Conference Paper |

Low Phase Noise Power Distribution Technology in the Design of Reference Frequency Source Circuits

Cheng-Jie Jiang;Jie Qian;Xiao-Guo Huang

2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall)

Year: 2019 | Conference Paper |

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Phase noise is one of the core features in reference frequency source circuits, and directly affects the performance of frequency synthesizer. When a source is used as reference signalits phase noise is transferred to IF signal through down converter circuit, and reduces the signal noise ratio. In multi-channel applications, the number of reference signals should match to the quantity of channels....Show More

Low Phase Noise Power Distribution Technology in the Design of Reference Frequency Source Circuits

Cheng-Jie Jiang;Jie Qian;Xiao-Guo Huang

2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall)

Year: 2019 | Conference Paper |

Tunable Bandstop Filters Based on Varactor-loaded Multi-mode Resonators

Xiao-Guo Huang;Jie Qian

2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall)

Year: 2019 | Conference Paper |

Cited by: Papers (1)

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This paper presents a tunable dual-band or single-band bandstop filter based on switchable varactor-loaded dual-mode resonator. The proposed tunable filters topologies consist of two switchable dual-mode resonators and main transmission line. When the switch is on, the switchable dual-mode resonator changes to dual-mode resonator, which can be used to design dual-mode tunable bandstop filter; when...Show More

Tunable Bandstop Filters Based on Varactor-loaded Multi-mode Resonators

Xiao-Guo Huang;Jie Qian

2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall)

Year: 2019 | Conference Paper |

Design of a Low-Voltage CMOS Mixer with Improved Linearity

J. Gou;X.-Y. Xu;X.-G. Huang

2019 International Conference on IC Design and Technology (ICICDT)

Year: 2019 | Conference Paper |

Cited by: Papers (1)

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This paper presents a low-voltage CMOS (complementary-metal-oxide-semiconductor) mixer with low power consumption. By using the folded-cascade structure, the problem on high supply voltage of the stacking transconductance-stage and switching-stage is solved. Firstly, a differential cross-coupling structure is used to improve transconductance-stage's linearity without decreasing voltage margin. The...Show More

Design of a Low-Voltage CMOS Mixer with Improved Linearity

J. Gou;X.-Y. Xu;X.-G. Huang

2019 International Conference on IC Design and Technology (ICICDT)

Year: 2019 | Conference Paper |

Design of a six-pole tunable band-pass filter with constant absolute bandwidth

Xiao-Guo Huang;Jin-Qi Zhang;Yi-Qun Lin;Qian-Yin Xiang

2016 Progress in Electromagnetic Research Symposium (PIERS)

Year: 2016 | Conference Paper |

Cited by: Papers (6)

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This paper presents the design and implementation of a tunable bandpass filter with constant absolute bandwidth. Two types of coupled microstrip lines in the anti-parallel and pro-parallel formats with varactor-loaded ⋋/2 resonators are investigated to demonstrate its advanced capacity in control of the bandwidth variation. In this design, two adjacent resonators are coupled with each other throug...Show More

Design of a six-pole tunable band-pass filter with constant absolute bandwidth

Xiao-Guo Huang;Jin-Qi Zhang;Yi-Qun Lin;Qian-Yin Xiang

2016 Progress in Electromagnetic Research Symposium (PIERS)

Year: 2016 | Conference Paper |

Electronic tunable diplexer with wide tuning range

Xiao-Guo Huang;Jin-Qi Zhang;Yi-Qun Lin;Qian-Yin Xiang

2016 Progress in Electromagnetic Research Symposium (PIERS)

Year: 2016 | Conference Paper |

Cited by: Patents (1)

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A varactor-based tunable diplexer with wide tuning range is proposed in this paper. The proposed diplexer consists of two varactor-loaded open-loop resonator filters. Size reduction and wide tuning range are achieved by using the varactor-loaded open-loop resonator. A simple microstrip T junction at the input and two filters responsible for the respective passbands is applied. Simulated insertion ...Show More

Electronic tunable diplexer with wide tuning range

Xiao-Guo Huang;Jin-Qi Zhang;Yi-Qun Lin;Qian-Yin Xiang

2016 Progress in Electromagnetic Research Symposium (PIERS)

Year: 2016 | Conference Paper |

Tunable 3-D Bandpass Frequency-Selective Structure With Wide Tuning Range

X. G. Huang;Z. Shen;Q. Y. Feng;B. Li

IEEE Transactions on Antennas and Propagation

Year: 2015 | Volume: 63, Issue: 7 | Journal Article |

Cited by: Papers (69)

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A new three-dimensional (3-D) tunable bandpass frequency selective structure (FSS) with wide tuning range is presented. The tunable FSS consists of a periodic array of printed circuit boards and a number of inserted metallic plates, where varactor-loaded λ/4 stepped-impedance resonators (SIRs) are constructed based on the propagation mode excited in the structure. By properly choosing the impedanc...Show More

Tunable 3-D Bandpass Frequency-Selective Structure With Wide Tuning Range

X. G. Huang;Z. Shen;Q. Y. Feng;B. Li

IEEE Transactions on Antennas and Propagation

Year: 2015 | Volume: 63, Issue: 7 | Journal Article |

A 2.285–3.195 GHz electrical tunable bandstop filter with constant absolute bandwidth

Qianyin Xiang;Quanyuan Feng;Xiaoguo Huang;Dinghong Jia

2014 IEEE International Wireless Symposium (IWS 2014)

Year: 2014 | Conference Paper |

Cited by: Papers (2)

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In this paper, a tunable bandstop filter with constant absolute bandwidth is proposed based on electric coupling compensation of tunable capacitor network. The equivalent circuit model of the tunable capacitor network is presented to study the tunable mechanism. The electric coupling factor of the tunable capacitor network increases while the tunable capacitor increasing. This mechanism can be use...Show More

A 2.285–3.195 GHz electrical tunable bandstop filter with constant absolute bandwidth

Qianyin Xiang;Quanyuan Feng;Xiaoguo Huang;Dinghong Jia

2014 IEEE International Wireless Symposium (IWS 2014)

Year: 2014 | Conference Paper |

Triple-mode dual-band bandpass filter on microstrip-to-CPW structure

Xiaoguo Huang;Quanyuan Feng;Lei Zhu;Qianyin Xiang;Dinghong Jia

2014 IEEE International Wireless Symposium (IWS 2014)

Year: 2014 | Conference Paper |

Cited by: Papers (1)

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A high-selectivity dual-band bandpass filter using a modified triple-mode resonator with two paralleled stubs is proposed. By adding a coplanar waveguide (CPW) structure into a microstrip dual-mode stepped-impedance resonator (SIR), the triple-mode resonator is achieved without significantly increasing the overall circuit size. Five transmission zeros are generated in the desired band so as to imp...Show More

Triple-mode dual-band bandpass filter on microstrip-to-CPW structure

Xiaoguo Huang;Quanyuan Feng;Lei Zhu;Qianyin Xiang;Dinghong Jia

2014 IEEE International Wireless Symposium (IWS 2014)

Year: 2014 | Conference Paper |

A constant absolute bandwidth filter with dual independent tunable passbands

Dinghong Jia;Quanyuan Feng;Xiaoguo Huang;Qianyin Xiang

2014 IEEE International Wireless Symposium (IWS 2014)

Year: 2014 | Conference Paper |

Cited by: Papers (4)

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This paper presents a novel procedure to the design of independent tunable dual-band bandpass filters with constant absolute 3-dB bandwidths. Only two bias voltages are required to control the locations of the passbands, respectively. Two kinds of dual-mode resonators are proposed to be selected while designing the passbands. Based on different parameters of even- and odd-modes, there are four typ...Show More

A constant absolute bandwidth filter with dual independent tunable passbands

Dinghong Jia;Quanyuan Feng;Xiaoguo Huang;Qianyin Xiang

2014 IEEE International Wireless Symposium (IWS 2014)

Year: 2014 | Conference Paper |

A constant absolute bandwidth tunable filter using varactor-loaded open-loop resonators

Xiaoguo Huang;Quanyuan Feng;Lei Zhu;Qianyin Xiang

2013 Asia-Pacific Microwave Conference Proceedings (APMC)

Year: 2013 | Conference Paper |

Cited by: Papers (4)

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This paper presents a new type of lager tuning rate tunable filters using varactor-loaded open-loop resonators. The filter is based on capacitively loaded folded λ/2 resonators that are coupled to each other with mixed electrical and magnetic coupling. By adjusting the value of the varactors between the open gaps in a mixed coupled filter, the coupling coefficients and external quality can be tune...Show More

A constant absolute bandwidth tunable filter using varactor-loaded open-loop resonators

Xiaoguo Huang;Quanyuan Feng;Lei Zhu;Qianyin Xiang

2013 Asia-Pacific Microwave Conference Proceedings (APMC)

Year: 2013 | Conference Paper |

Tunable Bandpass Filter With Independently Controllable Dual Passbands

Xiaoguo Huang;Lei Zhu;Quanyuan Feng;Qianyin Xiang;Dinghong Jia

IEEE Transactions on Microwave Theory and Techniques

Year: 2013 | Volume: 61, Issue: 9 | Journal Article |

Cited by: Papers (71)

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This paper presents a two-pole dual-band tunable bandpass filter (BPF) with independently controllable dual passbands based on a novel tunable dual-mode resonator. This resonator principally comprises a λ/2 resonator and two varactor diodes. One varactor is placed at the center of the resonator to determine the dominant even-mode resonant frequency; the other is installed between two ends of the r...Show More

Tunable Bandpass Filter With Independently Controllable Dual Passbands

Xiaoguo Huang;Lei Zhu;Quanyuan Feng;Qianyin Xiang;Dinghong Jia

IEEE Transactions on Microwave Theory and Techniques

Year: 2013 | Volume: 61, Issue: 9 | Journal Article |

Electrical Tunable Microstrip LC Bandpass Filters With Constant Bandwidth

Qianyin Xiang;Quanyuan Feng;Xiaoguo Huang;Dinghong Jia

IEEE Transactions on Microwave Theory and Techniques

Year: 2013 | Volume: 61, Issue: 3 | Journal Article |

Cited by: Papers (89)

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In this paper, two- and three-pole microstrip LC constant fractional bandwidth (CFBW) and constant absolute bandwidth (CABW) tunable bandpass filters are proposed. The equivalent-circuit models are presented to study the tunable mechanism. The filter can be reconfigured by changing the capacitance of the LC resonators. Based on electric coupling coefficient compensation, second- and third-order tu...Show More

Electrical Tunable Microstrip LC Bandpass Filters With Constant Bandwidth

Qianyin Xiang;Quanyuan Feng;Xiaoguo Huang;Dinghong Jia

IEEE Transactions on Microwave Theory and Techniques

Year: 2013 | Volume: 61, Issue: 3 | Journal Article |

Bandpass Filter With Tunable Bandwidth Using Quadruple-Mode Stub-Loaded Resonator

Xiaoguo Huang;Quanyuan Feng;Qianyin Xiang

IEEE Microwave and Wireless Components Letters

Year: 2012 | Volume: 22, Issue: 4 | Journal Article |

Cited by: Papers (68)

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In this letter, a novel quadruple-mode resonator bandpass filter (BPF) with tunable bandwidth is proposed. By using two types of microwave varactors to tune the resonant frequencies and transmission zeros (TZs), the high-side edge of the passband and low-side edge of the passband can be separately varied. Therefore, the bandwidth could be tunable with reasonable adjust of the values of varactors. ...Show More

Bandpass Filter With Tunable Bandwidth Using Quadruple-Mode Stub-Loaded Resonator

Xiaoguo Huang;Quanyuan Feng;Qianyin Xiang

IEEE Microwave and Wireless Components Letters

Year: 2012 | Volume: 22, Issue: 4 | Journal Article |

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