Dual patches microstrip fed antenna with wide bandwidth

An antenna with broadband operation is presented. The design combines a conventional PIFA antenna with capacitive coupled patches and a pair of wave trap. The first patch is attached to a 50Ω microstrip feed line and the second patch is shaped similarly to a slotted C patch used in a conventional PIFA design. The antenna achieves an impedance bandwidth of 62% at SWR < 3. All antenna elements are situated above a fixed sized ground plane and can be manufactured using PCB etching and moulding technology. The dimensions of the antenna are 160 mm long, 60 mm wide and 31 mm high. Details of the antenna design and its typical characteristics are presented.

[1]  Rod Waterhouse,et al.  Microstrip Patch Antennas , 2018, Handbook of Antennas in Wireless Communications.

[2]  Henry Jasik,et al.  Antenna engineering handbook , 1961 .

[3]  B. Sanz-Izquierdo,et al.  Single and double layer planar multiband PIFAs , 2006, IEEE Transactions on Antennas and Propagation.

[4]  Wee Jin Koh,et al.  Single-patch and single-layer square microstrip antenna with 67.5% bandwidth , 2001 .

[5]  N. Herscovici,et al.  New considerations in the design of microstrip antennas , 1998 .

[6]  Kin-Lu Wong,et al.  Ultra-wideband PIFA with a capacitive feed for penta-band operation in the folder-type mobile phone , 2008, 2008 IEEE Antennas and Propagation Society International Symposium.

[7]  Richard G. Stevens.  The Best City , 2010 .

[8]  Kin-Lu Wong,et al.  Planar Antennas for Wireless Communications , 2003 .

[9]  G. Kumar,et al.  Broadband microstrip antennas , 2002, Microstrip and Printed Antenna Design.

[10]  Dirk Manteuffel,et al.  Design considerations for integrated mobile phone antennas , 2001 .

[11]  J. R. James,et al.  Mobile Antenna Systems Handbook , 2001 .

[12]  Kwai-Man Luk,et al.  Measurement and analysis of miniature multilayer patch antenna , 2002 .

[13]  J. de Mingo,et al.  Inverted-F antenna with parasitic elements for TETRA handset , 1999, Gateway to 21st Century Communications Village. VTC 1999-Fall. IEEE VTS 50th Vehicular Technology Conference (Cat. No.99CH36324).

[14]  P. Lindberg,et al.  A bandwidth enhancement technique for mobile handset antennas using wavetraps , 2006, IEEE Transactions on Antennas and Propagation.