A 42-GHz-Band Low-Noise Downconverter

Hisao NAKAKITA; Kazuo IMAI

A 42-GHz-Band Low-Noise Downconverter

Hisao NAKAKITA, Kazuo IMAI

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A novel 42-GHz-band low-noise downconverter for high-definition TV (HDTV) outside broadcast links has been developed. Commercially available HEMTs are used for a low-noise preamplifier, and the parasitic reactances of bonding wires were considered when designing the input and output matching circuits for the preamplifier. A gain of 10.2 dB and a noise figure of 3.6 dB were obtained with a two-stage HEMT amplifier. The local oscillator was a parallel-feedback HEMT oscillator that directly generated a 38-GHz-band signal and was stabilized by a spherical dielectric resonator. With an output power of more than 4 dBm, a frequency drift of 2 MHz_p-p was obtained over an ambient temperature range of 0 to 40. From 41.5 to 42.0 GHz, the total noise figure of the downconverter was less than 5 dB.

Publication: IEICE TRANSACTIONS on Electronics Vol.E74-C No.12 pp.4124-4130

Publication Date: 1991/12/25

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Type of Manuscript: Special Section PAPER (Special Issue on Millimeter-Wave/Heterojunction Devices)

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Hisao NAKAKITA
Kazuo IMAI

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Hisao NAKAKITA, Kazuo IMAI, "A 42-GHz-Band Low-Noise Downconverter" in IEICE TRANSACTIONS on Electronics, vol. E74-C, no. 12, pp. 4124-4130, December 1991, doi: .
Abstract: A novel 42-GHz-band low-noise downconverter for high-definition TV (HDTV) outside broadcast links has been developed. Commercially available HEMTs are used for a low-noise preamplifier, and the parasitic reactances of bonding wires were considered when designing the input and output matching circuits for the preamplifier. A gain of 10.2 dB and a noise figure of 3.6 dB were obtained with a two-stage HEMT amplifier. The local oscillator was a parallel-feedback HEMT oscillator that directly generated a 38-GHz-band signal and was stabilized by a spherical dielectric resonator. With an output power of more than 4 dBm, a frequency drift of 2 MHz_p-p was obtained over an ambient temperature range of 0 to 40. From 41.5 to 42.0 GHz, the total noise figure of the downconverter was less than 5 dB.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e74-c_12_4124/_p

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@ARTICLE{e74-c_12_4124,
author={Hisao NAKAKITA, Kazuo IMAI, },
journal={IEICE TRANSACTIONS on Electronics},
title={A 42-GHz-Band Low-Noise Downconverter},
year={1991},
volume={E74-C},
number={12},
pages={4124-4130},
abstract={A novel 42-GHz-band low-noise downconverter for high-definition TV (HDTV) outside broadcast links has been developed. Commercially available HEMTs are used for a low-noise preamplifier, and the parasitic reactances of bonding wires were considered when designing the input and output matching circuits for the preamplifier. A gain of 10.2 dB and a noise figure of 3.6 dB were obtained with a two-stage HEMT amplifier. The local oscillator was a parallel-feedback HEMT oscillator that directly generated a 38-GHz-band signal and was stabilized by a spherical dielectric resonator. With an output power of more than 4 dBm, a frequency drift of 2 MHz_p-p was obtained over an ambient temperature range of 0 to 40. From 41.5 to 42.0 GHz, the total noise figure of the downconverter was less than 5 dB.},
keywords={},
doi={},
ISSN={},
month={December},}

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TY - JOUR
TI - A 42-GHz-Band Low-Noise Downconverter
T2 - IEICE TRANSACTIONS on Electronics
SP - 4124
EP - 4130
AU - Hisao NAKAKITA
AU - Kazuo IMAI
PY - 1991
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E74-C
IS - 12
JA - IEICE TRANSACTIONS on Electronics
Y1 - December 1991
AB - A novel 42-GHz-band low-noise downconverter for high-definition TV (HDTV) outside broadcast links has been developed. Commercially available HEMTs are used for a low-noise preamplifier, and the parasitic reactances of bonding wires were considered when designing the input and output matching circuits for the preamplifier. A gain of 10.2 dB and a noise figure of 3.6 dB were obtained with a two-stage HEMT amplifier. The local oscillator was a parallel-feedback HEMT oscillator that directly generated a 38-GHz-band signal and was stabilized by a spherical dielectric resonator. With an output power of more than 4 dBm, a frequency drift of 2 MHz_p-p was obtained over an ambient temperature range of 0 to 40. From 41.5 to 42.0 GHz, the total noise figure of the downconverter was less than 5 dB.
ER -