Abstract
The paper presents an improved vector fitting method for the approximation of the non-flat amplitude-frequency response curve of an antenna used in near-field measurements. The method introduces a first order derivative and a post-multiplication of the coefficient matrix by a diagonal matrix to the standard vector fitting method. Simulation and application results showed that the improved methodology can approximate the finer details of the actual frequency response curve better. It also produces a higher fitting accuracy when compared to the general vector fitting method. The improved method also has the advantage of requiring a smaller sample size in the frequency domain.
| Original language | English |
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| Title of host publication | Asia-Pacific Symposium on Electromagnetic Compatibility and 19th International Zurich Symposium on Electromagnetic Compatibility, 2008. APEMC 2008 |
| Publisher | IEEE |
| Pages | 375-378 |
| Number of pages | 3 |
| ISBN (Print) | 9789810806293 |
| DOIs | |
| Publication status | Published - May 2008 |
| Event | Asia-Pacific Symposium on Electromagnetic Compatibility and 19th International Zurich Symposium on Electromagnetic Compatibility, 2008. APEMC 2008 - Singapore, Singapore Duration: 19 May 2008 → 23 May 2008 |
Conference
| Conference | Asia-Pacific Symposium on Electromagnetic Compatibility and 19th International Zurich Symposium on Electromagnetic Compatibility, 2008. APEMC 2008 |
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| Country/Territory | Singapore |
| City | Singapore |
| Period | 19/05/08 → 23/05/08 |
Keywords
- antennas
- frequency response
- matrix algebra
- coefficient matrix
- diagonal matrix
- first order derivative
- frequency domain
- frequency response curve
- near-field measurements
- nonflat amplitude-frequency response curve
- parameter identification
- standard vector fitting method
- transfer functions
- vector fitting method