An Integrated Dual-Band PIFA for DVB-T and WiMAX Applications

Abstract

A compact dual-band planar inverted-F antenna (PIFA) working in the DVB-T (470–862 MHz) and WiMAX (3300–3800 MHz) frequency bands is presented. The antenna is designed to be integrated in a monitor-equipped device, like a television (TV) set, and meets strict space requirements. The final design fits a volume of 225X31X20 mm (LxWxH). It is composed of a series of branches, properly dimensioned and separated to generate the required resonances. A prototype has been realized with a 0.4-mm-thick aluminum foil, properly cut and folded. Results are shown in terms of reflection coefficient, radiation patterns, and gain. The antenna shows a reflection coefficient less then 6 and 10 dB, and a gain between 2.7 and 4.8 dBi and approximately equal to 3.7 dBi, in the DVB-T and WiMAX bands, respectively

Design, analysis, and fabrication of a novel multiband folded edge compact size fractal PIFA for WiFi/LTE/WiMAX/ WLAN application

“…Therefore, it is attractive to design multiband microwave circuits and components. Up to now, a lot of works have been reported on dual-band microwave components [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] including dual-band filters [1][2][3][4][5][6], dual-band power dividers [7][8][9], dual-band crossovers [10,11], dual-band baluns [12][13][14][15], etc. Meanwhile, coupler is one of the fundamental passive components in microwave systems.…”

“…In addition to multiband operation of antenna, the size is also important factor for modern day wireless devices. PIFA [7][8][9][10][11][12][13] is reported as a small size antenna to be used for mobile phone handsets. Further, dual band operation of PIFA is challenge while reduction in size is second parameter.…”

Parasitic effects of the metallic towers on the characteristics of the broadcast antennas

“…Versatile antennas are being developed with wider bandwidth, higher gain and front‐to‐back ratio, large return loss and half power beamwidth to give optimal coverage to a particular region. Recently, many antennas have been reported in the literature, for DVB‐T applications. When DVB‐T or any broadcast antenna is mounted on top of a tower, it is important to see whether properties of the antenna, such as patterns, impedance, return loss, gain and front‐to‐back ratio, are affected by the tower itself.…”

Horizontally polarized omnidirectional antenna using octagonal dipole array for digital television reception

“…DVB-T2 offers various sorts of services, such as high definition TV (HDTV) service for fixed reception, mobile multimedia services for mobile reception, and so on. The operated frequency from 470 MHz to 862 MHz with the horizontal polarization is assigned for this application [1]- [3]. For the reception signal antenna, the 360 degrees scanning in the horizontal plane is desired.…”