High-T_c Superconducting Active Slot Antenna with a YBCO Step-Edge Josephson Junction Array
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概要
- 論文の詳細を見る
The high-T_c superconducting active antenna proposed here for millimeter and submillimeter radiowave communications, uses a YBCO slot antenna with a series Josephson junction array to increase the normal-state resistance of the junctions, in order to ensure impedance matching between the antenna and the junctions. The antenna is a coplanar waveguide fed slot antenna, which can be easily and monolithically combined with the Josephson junctions. The design frequency of the antenna is 10 GHz and the obtained bandwidth of a VSWR less than 2 was 4.1%. Normal-state resistance values of the junction array could be confirmed by measuring I-V characteristics and 100-MHz impedance measurements, and both agree very well. Microwave mixing experiments were carried out using the junction array with the antenna, and the experiments showed that the conversion gain of the junction was proportional to the number of the junctions. The conversion gain of an eight-junction mixer with the antenna was found to be -6 dB.
- 社団法人電子情報通信学会の論文
- 1995-08-25
著者
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Wang Zhen
Kansai Advanced Research Center Communications Research Laboratory Iwaoka
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Wang Z
Kansai Advanced Research Center Communications Research Laboratory
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Wang Z
Communications Res. Lab. Ministry Of Posts And Telecommunications Kobe‐shi Jpn
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Chujo Wataru
Kansai Advanced Research Center, Communications Research Laboratory
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Shimakage Hisashi
Kansai Advanced Research Center, Communications Research Laboratory
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Komiyama Bokuji
Kansai Advanced Research Center, Communications Research Laboratory
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Shimakage Hisashi
Kansai Advanced Research Center Communications Research Laboratory
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Wang Z
Nanyang Technological Univ. Singapore
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Chujo W
Strategic Planning Division Communications Research Laboratory
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Komiyama Bokuji
Kansai Advanced Research Center Communications Research Laboratory
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Wang Zhen
Kansai Advanced Research Center Communications Research Laboratory
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