A Novel Analytical Method for Optimizing the Terminating Impedance of an Inverted-F Antenna for Antenna Selection Diversity on a Hand-Held Phone
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概要
- 論文の詳細を見る
Recently, antenna selection diversity has been widely used for hand-held phones to overcome a fading problem. A monopole antenna (MPA) and an inverted-F antenna (IFA) are the typical antennas used for this purpese. However, strong mutual coupling generally appears between these two antennas and often makes the diversity antenna design difficult. In particular, in the case that the MPA is unselected antenna the mutual coupling can be minimized using the open terminating impedance. On the other hand, in the case that the IFA is unselected antenna teh teuminating impedance, which can minimize the mutual cou pling, has not been clarfied. This paper presents a novel analytical method for optimizing the terminating impedance of the IFA. The method exploits the Z-matrix, and the final expression of the terminating impedance is expressed by self- and mutualimpedance. The numerical and experimental results confirm that the proposed optimization method is offective for minimizing the mutual coupling.
- 社団法人電子情報通信学会の論文
- 2001-01-01
著者
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Suzaki Y
Ntt Photonics Laboratories
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Suzuki Y
Optoelectronic Device System R&d Center Kanazawa Institute Of Technology
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ODACHI Noariaki
The authors are with Corporate Research & Development Center, Toshida Corp.
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SEKINE Syuichi
The authors are with Corporate Research & Development Center, Toshida Corp.
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SHOKI Hiroki
The authors are with Corporate Research & Development Center, Toshida Corp.
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SUZUKI Yasuo
The author is with the Department of Electrical and Electronic Engineering, Tokyo University of Agri
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Shoki H
Toshiba Corp. Kawasaki‐shi Jpn
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Suzuki Y
Technology Development Division Victor Company Of Japan Limited
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Sekine S
Toshiba Corp. Kawasaki‐shi Jpn
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Odachi Noariaki
The Authors Are With Corporate Research & Development Center Toshida Corp.
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