Improved Broadband Operation of Rat-race Hybrid and Balanced Active Doubler: Analysis and Demonstration
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概要
- 論文の詳細を見る
This paper presents comprehensive analysis of an innovative 180° rat-race hybrid and of balanced active doubler with the aim to achieve broadband operation. The proposed concept are experimentally validate by the fabrication of a Ka-band 180° rat-race hybrid and a V-band PHEMT active doubler. These devices have been fabricated with the three-dimensional MMIC technology to benefit from a high level of integration. The fabricated hybrid exhibits a bandwidth of 31%(28.8GHz-39.4GHz)with -15dB return loss, insertion loss of 1.6dB, power balance less than 1.1dB and phase balance better then 2°. The balanced doubler can be used from 27GHz to 34.5GHz with a fundamental frequency rejection better than 45dB and isolation better than 30dB. These substantially improved performances in term of bandwidth make the devices particularly suitable for the realization of high quality and widely tunable V-band frequency sources.
- 社団法人電子情報通信学会の論文
- 2000-10-31
著者
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Piernas B
Ntt Corp. Yokosuka‐shi Jpn
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Piernas Belinda
Ntt Network Innovation Laboratories Ntt Corporation:(present Address)fujitsu Compound Semiconductor
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Nakagawa Tadao
Ntt Network Innovation Laboratories Ntt Corporation
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NISHIKAWA Kenjiro
NTT Network Innovation Laboratories, NTT Corporation
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Nakagawa Tadao
Ntt Network Innovation Laboratories
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HAYASHI Hitoshi
NTT Network Innovation Laboratories
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Araki Katsuhiro
Ntt Network Innovation Laboratories
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Nakagawa T
Ntt Network Innovation Laboratories Ntt Corporation
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Hayashi Hitoshi
Ntt Corp. Yokosuka‐shi Jpn
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Nishikawa Kenjiro
Ntt Network Innovation Laboratories Ntt Corporation
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Nishikawa Kenjiro
Ntt Network Innovation Laboratories
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Piernas Belinda
NTT Network Innovation Laboratories
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