| Presentation | 2017-03-16 An Extension of Dip Suppression Technique in Wheeler Radiation Efficiency Using Rational Fraction Fitting of Reflection Coefficient for Small Antennas Nozomu Ishii, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A technique for eliminating discontinuities due to cavity resonance in radiation efficiency estimated by Wheeler cap method and reflection method is extended. Measured reflection coefficients of antenna under test inside the cavity are fitted to a rational function and common factor which poles are approximately equal to zeros should be canceled. This report proposes that some combinations of poles and zeros which can compose all-pass function should be canceled. Moreover, the extension is validated for measured reflection coefficients for monopole antenna. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Wheeler cap method / reflection method / cavity resonance / rational function / poles / zeros |
| Paper # | AP2016-183 |
| Date of Issue | 2017-03-09 (AP) |
| Conference Information | |
| Committee | AP |
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| Conference Date | 2017/3/16(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Iwate Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Antennas and Propagation |
| Chair | Keizo Cho(Chiba Inst. of Tech.) |
| Vice Chair | Hisato Iwai(Doshisha Univ.) |
| Secretary | Hisato Iwai(Niigata Univ.) |
| Assistant | Nobuyasu Takemura(Nippon Inst. of Tech.) / Satoshi Yamaguchi(Mitsubishi Electric) |
| Paper Information | |
| Registration To | Technical Committee on Antennas and Propagation |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An Extension of Dip Suppression Technique in Wheeler Radiation Efficiency Using Rational Fraction Fitting of Reflection Coefficient for Small Antennas |
| Sub Title (in English) | |
| Keyword(1) | Wheeler cap method |
| Keyword(2) | reflection method |
| Keyword(3) | cavity resonance |
| Keyword(4) | rational function |
| Keyword(5) | poles |
| Keyword(6) | zeros |
| 1st Author's Name | Nozomu Ishii |
| 1st Author's Affiliation | Niigata University(Niigata Univ.) |
| Date | 2017-03-16 |
| Paper # | AP2016-183 |
| Volume (vol) | vol.116 |
| Number (no) | AP-526 |
| Page | pp.pp.31-36(AP), |
| #Pages | 6 |
| Date of Issue | 2017-03-09 (AP) |