RESEARCH
RESEARCH
5G Millimeter-Wave Phased Array Front-End System
The 5G millimeter-wave phased array front-end system is a critical component of 5G communication technology, primarily used to achieve high data transmission rates and low-latency communication. These systems rely on large-scale phased array antenna technology to compensate for the high path loss in the millimeter-wave frequency band, while also improving signal coverage and transmission efficiency through beamforming techniques.
Ultra Wideband Multi-Channel Transceiver Chip
The ultra-wideband multi-channel transceiver chip is a type of RF chip capable of supporting ultra-wideband frequency ranges and multi-channel communication. This kind of chip typically feature high integration, high performance, and low power consumption, making it suitable for various modern digital wireless communication systems, such as 5G, the Internet of Things (IoT), and satellite navigation.
K-Band Module IP: Power Synthesized CMOS Amplifier
a 4-path series-parallel combined highly-efficient class-AB power amplifier (PA) with broad bandwidth and low AM-PM distortion in CMOS process is proposed. AM-PM distortion is minimized by utilizing PMOS varactors that mitigate the voltage dependence of transistor intrinsic capacitors and harmonic traps that minimize common-mode voltage swings at the second-harmonic frequency. Complete electromagnetic modeling ensures the proposed PA achieve its full potential.
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K-Band Module IP: Broadband Low Noise Amplification
A K-band broadband low-noise amplifier (LNA) is a low-noise amplifier that operates in the K-band frequency range and is designed with the goal of achieving high gain and low noise figure.The design of a K-band broadband LNA requires a comprehensive consideration of the gain, the noise figure, the matching network, as well as the materials and techniques used in order to meet the needs of different application scenarios.
K-Band Module IP: Attenuator
A 26-32GHz 6-bit differential attenuator in 40nm CMOS process is presented. This attenuator adopts an optimized cascade scheme that incorporates simplified T-type (ST-type), T-type and Π-type attenuator units. Driven by a complete analysis of the pole-zero pattern introduced by the compensation capacitor, the design achieves a state-of-art uncalibrated RMS attenuation and phase error.
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K-Band Module IP: High Precision Phase Shifter
A 26-32GHz 6-bit bidirectional passive vector modulation phase shifter for phased array systems is proposed. The passive phase shifter consists of a capacitor-free Lange-coupler based IQ generator and a differemtial power combiner. The symmetric design allows bidirectional signal propagation for flexible system configuration. Sizes of the passive switches are optimized to achieve the optimum trade-off between bandwidth and linearity.
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