Maximizing the effective diversity gain of two parallel dipoles by optimizing the source impedances

✍ Scribed by Kent Rosengren; Jan Carlsson; Per-Simon Kildal

• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 111 KB
• Volume: 48
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.21400

✦ Synopsis

band impedance bandwidth. By varying the width of the patch, the gap (X and Y) of the patch, the thickness of the foam, and the position of the feeding point, optimized parameters are obtained in order to determine the good return-loss characteristic for the operating band. The obtained impedance bandwidth (1.5:1 VSWR) covers 920 MHz or 16.2%. The proposed antenna also shows good broadside radiation characteristics at the measured frequency. The gain was measured at 2.8 -7.3 dBi. Therefore, this antenna is suitable for practical applications requiring small and broadband antennas in the 5-GHz-band (HirperLan 1/2, ISM) operating frequencies.

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