Zhe Chen - IEEE Xplore Author Profile

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This paper presents a co-design of Ka-band high-gain low-noise amplifier (LNA) integrated circuit (IC) and antenna-in-package for the 5G applications. In this high-gain Ka-band LNA, a dual-LC tank matching technique is applied at the input to achieve wide-band simultaneous noise and power matching. This LNA IC is implemented in a 0.25 $\mu$m SiGe BiCMOS technology, and the antenna is implemented o...Show More
This paper presents a 30-GHz co-design of a 28-dB high-gain low-noise amplifier (LNA) and a 54% high-efficiency monopole antenna-on-chip for 5G wireless applications. The LNA design is based on a two-stage differential cascode structure with inductive degeneration. The antenna design is a modified monopole structure to maximize the radiation efficiency. Both parts are integrated directly on the sa...Show More
This paper presents a tunable wideband low-noise amplifier (LNA) covering 1.2 to 2.8 GHz and is realized in a 0.25 µm SiGe:C BiCMOS technology. The LNA covers 80% fractional bandwidth in 16 states using a dual-LC tanks input broadband noise matching technique and a switch capacitor output frequency selection network. The measured minimal noise figure (NF) is 0.8 dB at 1.4 and 1.8 GHz, and the aver...Show More
This paper presents a co-design of Ka-band high-gain low-noise amplifier (LNA) integrated circuit (IC) and chip-on-board packaging for the 5G applications. In this high-gain Ka-band LNA, a dual-LC tank matching technique is applied at the input to achieve wide-band simultaneous noise and power matching. This LNA IC is implemented in a 0.25 µm SiGe BiC-MOS technology, and it is packaged in a chip-o...Show More
High Performance Wireless Sensor Networks (HP-WSN) for critical, low latency applications such as traffic control, industrial process control, smart structures and smart vehicles has been a fast-growing field. Nevertheless, efforts towards new systems and circuit architectures to enable real-time, predictable and reliable HP-WSN have been limited, specially for reliable, low latency wireless links...Show More
A wide-scan and broadband focal-plane array (FPA) concept is introduced in this article, which provides high antenna gain and effective isotropic radiated power (EIRP) with electronic beamsteering within a relatively large field of view (FoV), up to +/-20°. The antenna uses a bifocal double-reflector concept that optimizes the illumination of the focal-plane region. In this way, we have reduced th...Show More
This paper investigates the feasibility of wideband low-noise amplifiers in bipolar silicon-germanium IC technology. Three different design techniques are compared and the most promising one is analyzed in detail and examined on a design example. We propose a design approach based on an LC-ladder structure as the input matching network. Used in combination with the cascode structure amplifier with...Show More
This paper presents a 28.5 dB high-gain Ka-band low-noise amplifier (LNA) in a 0.25 µm SiGe:C BiCMOS technology. To achieve wide band (fractional bandwidth > 25%) simultaneous noise and power matching with compact size, a 3-winding transformer based dualtank matching technique is proposed and implemented for the input matching. The LNA provides 28.5 dB peak gain at 32 GHz with a 3-dB gain bandwidt...Show More
This paper presents an ultra-broadband low-noise amplifier (LNA) operating from 16 to 43 GHz in a 0.25 pm SiGe:C BiCMOS technology. Across this band, the LNA achieves simultaneous low-noise performance (2.5–4.0 dB) and power matching (S11 < −10 dB) using dual-LC tank matching. The measured minimal noise figure is 2.5 dB at 26 GHz with an average value of 3.25 (±0.75) dB from 16 to 44 GHz. The best...Show More
This paper presents a design of fully differential low-noise amplifier (LNA) used for 60 GHz low power wireless communication in 65 nm CMOS technology. The proposed LNA consists of an input stage employing capacitive cross-coupling technique and an gain stage using current-reuse techniques. The simulated amplifier achieves both input and output matching better than −15dB, a forward gain of 15 dB, ...Show More