Study on improving sensitivity of multi-broadband receivers

Kang, Sanggil; Yun, Young; Jae-Pil, Jung; Go, Min-Ho; Park, H.D.

doi:10.1049/el:20072180

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2021

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“…Common radar detectors usually adopt the architecture of a multi-band mixer. A gate FET mixer with a tunable gate bias voltage for the X-, K-, and Ka-bands has been explored [2]. This circuit detects only one RF band with respect to the optimized gate voltage for one band among the X-, K-, and Ka-bands.…”

Section: Introductionmentioning

confidence: 99%

Harmonic Dual-Band Diode Mixer for the X- and K-Bands

Park

Lee

2021

J Electromagn Eng Sci

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This paper presents a new dual-band diode mixer for the X- and K-bands. The proposed mixer consists of a pair of series-connected diodes and a frequency-dependent delay line that operates at 180° and 360° at the X-band of 10.525 GHz and at the K-band of 24.15 GHz, respectively. Without reconfigurable devices such as switches, the proposed mixer operates as a single-balanced diode mixer at the X-band and a subharmonically pumped antiparallel diode mixer at the K-band simultaneously. The designed circuit was implemented in a hybrid microwave integrated circuit using discretely packaged RF components on a microwave printed circuit board. The measurement results showed conversion losses of 6.5 dB and 16.6 dB at the X- and K-bands, respectively.

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Section: Introductionmentioning

confidence: 99%