Title :
Tunable Multiband Handset Antenna Operating at VHF and UHF Bands
Author :
Luyi Liu ; Rigelsford, Jonathan ; Langley, Richard
Author_Institution :
Electr. & Electron. Eng. Dept., Univ. of Sheffield, Sheffield, UK
fDate :
7/1/2013 12:00:00 AM
Abstract :
A compact multiband tunable PIFA system using a varactor as an active tuning component is presented covering 88-2175 MHz. The antenna was designed to cover the mobile telephone bands (GSM850, 900, 1800, 1900, UMTS) by controlling the value of the capacitance across the gap in the slotted PIFA and two broadcast bands, FM radio (76-108 MHz) & mobile television DVB-H (470-702 MHz), were added by designing an appropriate matching circuit into the system. The antenna measured λ/15 × λ/43 × λ/19 at 470 MHz and was easily integrated into a small mobile phone handset. Simulations are verified by measurements.
Keywords :
3G mobile communication; cellular radio; digital video broadcasting; mobile antennas; mobile handsets; planar inverted-F antennas; varactors; DVB-H; FM radio; GSM1800; GSM1900; GSM850; GSM900; UHF band; UMTS; VHF band; active tuning component; broadcast bands; compact multiband tunable PIFA system; frequency 88 MHz to 2175 MHz; matching circuit; mobile telephone bands; mobile television; slotted PIFA; small mobile phone handset; tunable multiband handset antenna; varactor; Antenna measurements; Digital video broadcasting; Frequency measurement; Frequency modulation; Mobile antennas; Transmission line measurements; Varactors; Antennas; mobile telephone antennas; planar inverted-F antenna (PIFA); small antennas; tunable antennas;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2013.2254447
