Abstract
Wide-band matching of a tunable 1D periodic microwave structure, designed for fabrication in GaAs technology, is investigated. The two-layer unit cell of the periodic structure consists of a microstrip line loaded by multiple rectangular patches, which can be selectively short-circuited. The wide variation of the position of the bandgap, obtained by electrically controlled switches, induces a large variation of the effective dielectric constant in the considered wide frequency range. This effect is further reflected as a significant variation of the characteristic impedance, and hence a potentially high mismatch loss. A method for wide-band minimization of the mismatch (with respect to a 50ω reference impedance), without compromising the performance of the device, is presented.
Original language | English |
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Title of host publication | Final Program and Book of Abstracts - iWAT 2011: 2011 IEEE International Workshop on Antenna Technology: Small Antennas, Novel Structures and Innovative Metamaterials |
Place of Publication | Piscataway, NJ |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 376-379 |
Number of pages | 4 |
ISBN (Print) | 9781424491339 |
DOIs | |
Publication status | Published - 2011 |
Event | 2011 International Workshop on Antenna Technology: Small Antennas, Novel Structures and Innovative Metamaterials, iWAT 2011 - Hong Kong, China Duration: 7 Mar 2011 → 9 Mar 2011 |
Other
Other | 2011 International Workshop on Antenna Technology: Small Antennas, Novel Structures and Innovative Metamaterials, iWAT 2011 |
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Country/Territory | China |
City | Hong Kong |
Period | 7/03/11 → 9/03/11 |