Hetero-integrated terahertz low-noise miniaturized image frequency rejection transceiver front-end

US12267100B2 · kind B2 · utility

Assignee

• University of Electronic Science and Technology of China · CN

Inventors

• Bo Zhang · Shanghai, CN
• Zhongqian Niu · Sichuan, CN
• Xiaobo Yang · Chengdu, CN
• Bingli Dai · Chengdu, CN
• Yi HU · Chengdu, CN
• Jicong Zhang · Sichuan, CN
• Yong Fan · Nanhu, CN
• Ke Liu · San Diego, US
• Zhi Chen · Sichuan, CN

Key dates

• Filing date: Jul 30, 2022
• Grant date: Apr 1, 2025
• Expiry date: Sep 27, 2043

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03D7/165
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

The present disclosure provides a hetero-integrated terahertz low-noise miniaturized image frequency rejection transceiver front-end, including an intermediate frequency circuit and a terahertz circuit arranged up and down, where the terahertz circuit includes a local oscillator frequency tripler, a 135° 3 dB filter coupler, a radio frequency waveguide power divider, and two quartz hetero-integrated subharmonic mixers; resonant cavities of an input unit, a first output unit, an isolation unit, and a second output unit of the 135° 3 dB filter coupler are sequentially coupled through resonant grooves to form a ring structure, a cavity length of the resonant cavity of the input unit is twice that of the resonant cavities of the other three units, and an electrical length of a waveguide of the first output unit is 45° different from that of a waveguide of the second output unit.