Presentation 2020-06-04
A Microwave Oscillator with a Bipolar Transistor in Common-Collector Mode Controlled Negative Resistance
Hiroki Yamamoto, Minoru Sanagi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) When a packaged bipolar transistor is operated in a common-collector mode, the negative resistance at the base is exhibited without feedback networks. Thus, a negative resistance oscillator can be realized by connecting a resonator to the base. However, undesired oscillations were observed because frequency band where the negative resistance is exhibited is broad. The load impedance connecting to the emitter is controlled so that the frequency band with the negative resistance is narrow. In the experiments using prototype oscillators, suppression of the undesired oscillations was confirmed.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) microwave / bipolar transistor / common-collector / negative resistance / negative resistance oscillator
Paper # MW2020-14
Date of Issue 2020-05-28 (MW)

Conference Information
Committee MW
Conference Date 2020/6/4(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Yoshinori Kogami(Utsunomiya Univ.)
Vice Chair Tadashi Kawai(Univ. of Hyogo) / Kensuke Okubo(Okayama Prefectural Univ.) / Shintaro Shinjo(Mitsubishi Electric)
Secretary Tadashi Kawai(Fujitsu Labs.) / Kensuke Okubo(Saitama Univ.) / Shintaro Shinjo
Assistant Kyoya Takano(Tokyo Univ. of Science) / Naoki Hasegawa(Softbank)

Paper Information
Registration To Technical Committee on Microwaves
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Microwave Oscillator with a Bipolar Transistor in Common-Collector Mode Controlled Negative Resistance
Sub Title (in English)
Keyword(1) microwave
Keyword(2) bipolar transistor
Keyword(3) common-collector
Keyword(4) negative resistance
Keyword(5) negative resistance oscillator
1st Author's Name Hiroki Yamamoto
1st Author's Affiliation Okayama University(Okayama Univ.)
2nd Author's Name Minoru Sanagi
2nd Author's Affiliation Okayama University(Okayama Univ.)
Date 2020-06-04
Paper # MW2020-14
Volume (vol) vol.120
Number (no) MW-54
Page pp.pp.17-22(MW),
#Pages 6
Date of Issue 2020-05-28 (MW)