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Mutual Coupling Suppression Between Two Patch Antennas Using the Common/Differential Mode Theory
IEEE Antennas and Wireless Propagation Letters
Year: 2025 | Early Access Article |
An enhanced decoupling technique between two patch antennas is proposed in this letter based on the common-mode (CM) and differential mode (DM) theory. Two symmetrical antennas theoretically proved that if the impedances of CM and DM are the same, the mutual coupling effect between the separate antennas can be eliminated. Two parasitic patches are located above two identical patches spacing with 0...Show More
A Wideband MIMO Antenna with High Isolation
2024 IEEE 12th Asia-Pacific Conference on Antennas and Propagation (APCAP)
Year: 2024 | Conference Paper |
A wideband monopole antenna is presented in this paper. The antenna consists of two loop-shaped monopoles, two microstrip feedlines, and a defective ground. On the top layer, the loop-shaped monopole connects to a microstrip feedline to accomplish the wide operating band. On the bottom layer, the ground is cut by two V -shaped slots and a rectangular slot, connecting four T-shaped branches to achi...Show More
A novel cross dipole antenna, utilizing pixelation for design, is proposed. The unique feature of this antenna in that the use of pixels to shape the radiator through an Internal Multi-port Method (IMPM), ensuring impedance matching and bandwidth performance. This approach overcomes manual design limitations and yields performance metrics comparable to conventional methods while enhancing simulati...Show More
A Broadband Circularly Polarized Antenna Using Characteristic Mode Analysis
A low-profile and broadband circularly polarized (CP) antenna is presented. The CP antenna element comprises several patch cells and an L-shaped strip with three branches on the same layer. The patch cells and the L-shaped strip excite four linear polarized modes, while three branches shift these modes to suitable frequencies using characteristic mode analysis. Furthermore, a two-port antenna is c...Show More
An Artificial Intelligence Near-Field Probe Calibration Method Based on Generative Adversarial Network
Shan Xue;Yangyang Zhou;Jiong Tang;Yu Liu;Weiheng Shao;Duo-Long Wu;Xinxin Tian
2024 IEEE MTT-S International Wireless Symposium (IWS)
Year: 2024 | Conference Paper |
The near field scanning method specified in the international standard IEC-61967 is an important international diagnostic method for detecting electromagnetic compatibility problems. The near-field probe, as an important part of near-field scanning, mainly detects the magnetic field or electric field. The measurement accuracy of the near field probe directly affects the measurement accuracy of the...Show More
Wide-Band Omni-Directional Antenna of Circular Polarization
2024 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)
Year: 2024 | Conference Paper |
Omnidirectional antennas of circular polarization (CP) are widely used in mobile, vehicular, and satellite communication systems, radio frequency identification (RFID), and radar systems due to their excellent coverage and fading-immune performance under multi-path environments. However, most of the existing omnidirectional CP antennas are of narrow bandwidth. Therefore, it is desirable to design ...Show More
Miniaturized Broadband Dual-Polarized Magnetoelectric Dipole Antenna With High Isolation and Filtering Response
Kang Yu Yang;Wen Jian Zhu;Liang Hua Ye;Shao-Qiu Xiao;Xinrong Shi;Duo-Long Wu
A miniaturized broadband dual-polarized magnetoelectric (ME) dipole antenna with extremely high isolation and bandpass filtering response is proposed. A miniaturized \Pi -shaped folded ME dipole antenna is presented to introduce extra capacitor and inductance for achieving a wide bandwidth. Then, a special feed network, which includes a microstrip-to-slot feed scheme and a \Gamma -shaped f...Show More
Shared Dipoles Inspired Horizontally Polarized Omnidirectional Antenna With Broad Bandwidth
A horizontal-polarized (HP) omnidirectional antenna with an extremely wide bandwidth and small gain variation is presented. To attain horizontally polarized omnidirectional performance and small size, eight shared dipoles, which are round-connected into an octagon-shaped array, are excited by a 1-to-8 power divider. To significantly improve the impedance matching and omnidirectional performance ov...Show More
Broadband Hybrid Decoupling Method for a Dual-Polarized Antenna With High Isolation
This letter presents a hybrid decoupling technique to realize high isolation for dual-polarized dipole antennas. The proposed antenna consists of a cross-dipole on two horizontal layers, one in the x-axis direction directly fed by a coaxial line and its extended strip and another in the y-axis direction differentially excited by a wideband power divider. A wideband hybrid decoupling method is appl...Show More
Isolation Enhancement Between Two Low-Profile Patch Antennas for In-Band Full-Duplex Applications
Yue Hu;Wei Hao Chen;Mao Qin Wu;Liang Hua Ye;Fan Jiang;Jian-Feng Li;Duo-Long Wu
An enhanced isolation technique between two low-profile patch antennas is proposed. Two identical antennas are configured with two printed circuit boards (PCBs) spaced at 0.206λ0, where λ0 is the free-space wavelength at 3.5 GHz. Every antenna is a rectangular patch with four slots and two vias, vertically fed with a coaxial probe. A decoupling strip embedded between two antennas and a slot on the...Show More
A Broadband Circularly Polarized Dipole Antenna With High 1 dB Gain Flatness
Duo-Long Wu;Jianwei Pan;Liang Hua Ye;Jian-Feng Li;Fan Jiang;Xinxin Tian;Rui Li;Zhenxin Hu
A novel wideband circularly polarized (CP) dipole antenna is presented. The proposed antenna is configured with three horizontal layers of an electrical dipole, two parasite Π-strips, and a ground, where the electrical dipole is fed by a vertical microstrip balun, resulting in three CP modes. The 180° rotationally symmetric dipole generates two CP modes in the middle- and high-frequency bands. In ...Show More
A Virtual Network Matching Method for Correcting Asymmetric Near-Field Probing System
Weiheng Shao;Caixu Yu;Xinxin Tian;Zhanjun Huang;Wanqing Jing;Chengyang Luo;Litao Ruan;Yinghui Chen;Shan Xue;Duo-Long Wu
In symmetric two-port probing system, the measured electromagnetic field signals can be decoupled. However, in practical application, asymmetric problem is difficult to avoid. So, correcting asymmetric probing system (APS) is significant to achieve ultra-wide-band near-field measurement. In this article, a virtual network matching method (VNMM) is proposed based on a circuit model, which is differ...Show More
AI Deep Learning Optimization for Compact Dual-Polarized High-Isolation Antenna Using Backpropagation Algorithm
Duo-Long Wu;Xiao Jian Hu;Jin Hao Chen;Liang Hua Ye;Jian-Feng Li
An artificial intelligence deep learning algorithm is proposed to analyze a dual-polarized high-isolation antenna effectively. The method is a building model of multi-input target characteristics and multioutput dimensional variables based on a backpropagation algorithm (MIMO-BP). The inputs are defined as the desired targets of the two-port impedance bandwidths, average isolations, and maximum ga...Show More
Triband Dual-Polarized Dipole Antenna With Controllable Bandwidths for 5G/LTE Applications
Yuan Jun Li;Liang Hua Ye;Jian-Feng Li;Duo-Long Wu;Xiu Yin Zhang
A low-profile triband dual-polarized dipole antenna with stable radiation pattern and gain, as well as controllable bandwidths for base-station applications is proposed. Two crossed dipoles, which are fed by microstrip-to-slotline baluns, are used to generate stable radiation for ±45°-polarization at a very broad frequency band of 2.3–5.5 GHz, while an octagonal ring and triangular stubs are utili...Show More
An approach for pixel antenna optimization is proposed in this paper. This approach uses N-port characteristic mode analysis (CMA) in optimization to find as many independent and orthogonal modes of pixel structures as possible within a limited space. After as many orthogonal resonant modes as possible are found, some new feeding port searching methods are expected to be used to excite these mod...Show More
CPW-Fed Wide-Slot Planar Antenna for Dual-Band Applications
2023 IEEE 7th International Symposium on Electromagnetic Compatibility (ISEMC)
Year: 2023 | Conference Paper |
A CPW-fed wide-slot dual-band antenna is presented. The proposed dual-band antenna consists of a lower band element and two identical upper band elements by sharing the structure. The upper band antenna is placed on the ground of the lower band antenna to achieve miniaturization. The simulated results show that the bandwidth of the dual-band antenna in the lower band and the upper band are 117.8% ...Show More
A Five-Port UWB MIMO Slot Antenna Design with High Isolation
2023 IEEE 7th International Symposium on Electromagnetic Compatibility (ISEMC)
Year: 2023 | Conference Paper |
Cited by: Papers (1)
This paper designs a high isolation five-port UWB MIMO slot antenna on FR4 substrate. The antenna structure with stepped slots can expand bandwidth to cover the frequency range of 1.7 GHz to 6 GHz. The proposed antenna reduces mutual coupling between antenna components by introducing a decoupling structure composed of symmetrical horizontal and vertical open slots, and the isolation is better than...Show More
Comparative Analysis of Several Near-Field Probes for Magnetic Field Measurements
Hui Li;Weiheng Shao;Xinxin Tian;Duo-Long Wu;Litao Ruan;Shan Xue
The near-field magnetic probe ( {H} -probe) is an essential diagnostic tool for analyzing electromagnetic interference in electronic products. Many types of {H} -probes have been designed and manufactured in recent years. Nevertheless, the performance of these probes in practical magnetic field ( {H} -field) measurement is not clear. In this article, six typical {H} -probes with the same...Show More
Dual-Band Vertically Polarized Omnidirectional Patch Antenna With Low Profile
Jing Lun Zhang;Quan Da Liu;Qi Yun Wu;Liang Hua Ye;Jian-Feng Li;Duo-Long Wu
A dual-band vertical polarization omnidirectional antenna is proposed with the same three substrates in a low profile. The design is configured with four horizontal layers, a wheel-shaped patch (Patch 1) with an outer loop strip on the upper of the top printed circuit board (PCB) (Sub1), a fan-shaped patch (Patch 2) on the top of the mid PCB (Sub2), a four-sector patch on the upper of the bottom P...Show More
A Wideband Circularly Polarized Filtering Patch Antenna With Strip Network
A circularly polarized (CP) filtering patch antenna with a strip network is proposed, which utilizes two substrates with a spacing of 6 mm. A slotted loop is placed around a slotted patch on the top side of the upper substrate to excite two CP modes. A strip network printed on the bottom side of the upper substrate produces the third CP mode and a high-frequency radiation null, while low-band-edge...Show More
Compact Wideband Patch Filtenna With Enhanced Out-of-Band Suppression
Quan Da Liu;Qing Dong;Jun Xiang Wen;Liang Hua Ye;Duo-Long Wu;Xiu Yin Zhang
A compact broadband patch filtenna with enhanced stopband suppression is presented in this letter. The designed antenna is configurated with a simple structure having two substrates of 0.04λ0 spacing (λ0 is the free space wavelength at the center frequency). A rectangular patch with Π-, Γ-, and inverted Γ-shaped slots is printed on the top substrate and fed by a coaxial probe. The abovementioned t...Show More
Low-Profile Ultra-Wideband Dual-Polarized Omnidirectional Antenna for Indoor Base Station
Jian Dong Peng;Quan Da Liu;Liang Hua Ye;Xin-Xin Tian;Jian-Feng Li;Duo-Long Wu;Xiu Yin Zhang
A low-profile ultra-wideband omnidirectional antenna with dual polarizations for indoor mobile communication is presented. The horizontally polarized (HP) omnidirectional element is introduced by using 12 I-shaped slot antennas, which are arranged in a circle-shaped array and excited by a 1-to-12 power divider. The vertically polarized (VP) omnidirectional performance is introduced by using a dual...Show More
Broadband Dual-Polarized Magnetoelectric Dipole Antenna for In-Band Full-Duplex Application
Kai Jie Tang;Liang Hua Ye;Wen Jian Zhu;Jian-Feng Li;Duo-Long Wu
A broadband dual-polarized magnetoelectric (ME) dipole antenna is proposed for in-band full-duplex (IBFD) application. The exploited antenna comprises a cross ME dipole, two П-shaped and Г-shaped feedlines, and a ground with a box-shaped baffle. A wideband 180° power divider is connected to the П-shaped feedline and a coaxial line directly to the Г-shaped feedline to excite the cross ME dipole wit...Show More
Metamaterial-Based Low-Profile Broadband In-Band Full-Duplex Antenna
Kang Yu Yang;Wen Jian Zhu;Liang Hua Ye;Jian-Feng Li;Duo-Long Wu
A low-profile wideband antenna with extremely high isolation is proposed for in-band full-duplex applications. It is designed in a coplanar structure with a periodic array of nonuniform metamaterial cells, a hook-like feeding probe, and four mushroom-like structures. The nonuniform metamaterial cells are excited by a hook-like feeding probe to achieve horizontal polarization. Meanwhile, two slots ...Show More
A Low-Profile Dual-Polarized Patch Antenna With Simple Feed and Multiple Decoupling Techniques
A low-profile dual-polarized patch antenna with simple feed and multiple decoupling techniques is proposed. The proposed antenna consists of two substrates separated by 5 mm. At the top and bottom of Sub 1 are a microstrip balun (Port 2), and a rectangle patch etched with two symmetrical small rectangular slots. A rectangular slot, etched on the metal reflector of Sub 2, is excited by a microstrip...Show More
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