Electrically Small Antennas with Miniaturized Impedance Matching Circuits for Semiconductor Amplifiers(Active Circuits & Antenna, <Special Section>Recent Technologies of Microwave and Millimeter-Wave Devices Focusing on Miniaturization and Advancement in Performance with Their Applications)
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- YOSHIDA Keiji
- Department of Electronics, Graduate School of Information Science and Electrical Engineering, Kyushu University
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- TSUTSUMI Yukako
- Department of Electronics, Graduate School of Information Science and Electrical Engineering, Kyushu University
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- KANAYA Haruichi
- Department of Electronics, Graduate School of Information Science and Electrical Engineering, Kyushu University
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Abstract
In order to reduce the size of a wireless system, we propose a design theory for the broadband impedance matching circuit which connects an electrically small antenna (ESA) to a semiconductor amplifier. We confirmed its validity for the case of connection between a small slot loop antenna with a small radiation resistance of R_a=0.776Ω and a semiconductor amplifier with high input impedance of Z_L=321-j871Ω with the aid of the simulations by the electrical circuits using transmission lines as well as the electromagnetic field (EM field) simulator. We also made experiments on this antenna with matching circuits using high temperature superconductor YBCO thin films on MgO substrates.
Journal
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- IEICE transactions on electronics
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IEICE transactions on electronics 88 (7), 1368-1374, 2005-07-01
The Institute of Electronics, Information and Communication Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1574231874996258048
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- NII Article ID
- 10016778426
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- NII Book ID
- AA10826283
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- ISSN
- 09168524
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- Text Lang
- en
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- Data Source
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- CiNii Articles