Preliminary development of submillimeter wave large-power pulse detector

Wang Guangqiang; Wang Jian’guo; Wang Xuefeng; Li Shuang; Zeng Peng

doi:10.11884/HPLPB201527.043103

Volume 27 Issue 04

Mar. 2015

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Article Navigation > High Power Laser and Particle Beams > 2015 > 27(04): 043103

Kozlov A, Parfenov Yu, Chepelev V, et al. Assessing immunity of power systems to effects of high-voltage pulses with power on[J]. High Power Laser and Particle Beams, 2019, 31: 070006. doi: 10.11884/HPLPB201931.180356

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Wang Guangqiang, Wang Jian’guo, Wang Xuefeng, et al. Preliminary development of submillimeter wave large-power pulse detector[J]. High Power Laser and Particle Beams, 2015, 27: 043103. doi: 10.11884/HPLPB201527.043103

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Preliminary development of submillimeter wave large-power pulse detector

doi: 10.11884/HPLPB201527.043103

1.
Northwest Institute of Nuclear Technology,P.O.Box 69-13,Xi’an 710024,China;
2.
Science and Technology on High Power Microwave Laboratory,Xi’an 710024,China

Received Date: 2014-11-10
Rev Recd Date: 2014-12-17
Publish Date: 2015-03-23

Abstract

Abstract

A submillimeter wave large-power pulse detector for 300-400 GHz frequency band is fabricated and tested. Based on the hot electron effect under high electric field, the overmoded detecting segment of the detector is composed of a waveguide WR10 and an n-type silicon detecting chip placed on the wide waveguide wall. By using lithography and electroplating techniques, the detecting chips are manufactured well with excellent ohmic contact and high dimensional precision. Submillimeter wave large-power pulses is tested and measurement of voltage standing wave ratio (VSWR) is carried out for the detector prototype. Results show that the developed detector has a response time of picoseconds-level, a relative sensitivity of about 0.46 kW-1, VSWR less than 2.4, and the maximum enduring power no less than tens of watts, agreeing well with the improved simulation results. So it satisfies the demand of the direct detect of large power pulses at submillimeter wavelength.
- submillimeter wave,
- large power pulse,
- overmoded,
- VSWR

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