An all solid-state 330 GHz frequency multiplying Chain for 664 GHz radiometers application. Issue 7 (3rd July 2019)

• Record Type: Journal Article
• Authors: Yao, Changfei; Jiang, Yiyi; Chen, Zhenhua; Ge, Junxiang
• Is Part Of: International journal of electronics. Volume 106:Issue 7(2019)
• Page Start: 960
• Page End: 975
• Publication Date: 2019-07-03
• Subjects: GaAs Schottky diode -- power-combing -- efficiency -- multiplying chain; Electronics -- Periodicals; Electronic control -- Periodicals; 621.381
• DOI: 10.1080/00207217.2019.1570558
• Languages: English
• ISSNs: 0020-7217

Abstract

ABSTRACT: An all solid-state 330 GHz ×6 × 2 × 2 frequency multiplying chain is constructed and tested and it is used as a local oscillator (LO) in 664 GHz radiometers for cirrus clouds and cloud ice detecting. The frequency multiplying chain consists of a W-band sextupler, followed by a power-combined amplifier which delivers 460–540 mW output power, and two cascaded 165 GHz and 330 GHz balanced frequency doublers. The 165 GHz two-ways power-combined doubler applies four three-anode in series GaAs Schottky diodes to generate 50–63 mW output power in the frequency range 160–176 GHz, and its tested typical efficiency is 11.5%. The cascaded 330 GHz doubler uses a four-anode in anti-series arranged GaAs diode to generate 2.5–4.5 mW output power in the frequency range 320–352 GHz, and its tested typical efficiency is 6.0% and the maximum value is 8.0% at 328 GHz. The output power of the multiplying chain is high enough to pump the 664 GHz heterodyne radiometer for space application.