Examination on power handling capability of superconducting patch antenna

被引：8

作者：

Ehata, K ^{[1
]}

Ali, MI ^{[1
]}

Kusunoki, M ^{[1
]}

Ohshima, S ^{[1
]}

机构：

[1] Yamagata Univ, Fac Engn, Yamagata 9928510, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1999年 / 9卷 / 02期

关键词：

D O I：

10.1109/77.783680

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Measured results of power handling capability characteristics of superconducting patch antenna and it's improvement are reported. A direct-fed patch antenna is fabricated by YBa2Cu3Oy thin film with 50nm thickness. The gain of the antenna does not change with the applied power up to 26.3dBm at 12.3K, but drop of the gain is observed more than 26.5dBm. It is found by electromagnetic analysis that this gain drop occurs due to huge current concentration in the direct-fed patch. However, this current concentration can be reduced using the gap-coupled feed, and breakdown power is expected to be three times larger than that of direct feed.

引用

页码：3081 / 3084

页数：4

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