© The Institution of Engineering and Technology
The aim of this reported work was to achieve miniaturisation of an antenna for a wireless mic system covering the 216–224 MHz band. A double rectangular loop structure using a meander line was applied for size reduction and the broad bandwidth of the antenna. As a result of the installation of the mic, a length reduction ratio of 91.3% at 221 MHz and −10 dB bandwidth of 9.85 MHz (4.45%) were obtained.
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http://iet.metastore.ingenta.com/content/journals/10.1049/el_20071105
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