A novel planar monopole antenna with parallel ground structures for dual and wide band properties are proposed. The proposed antenna has two separate 10 dB return loss bandwidths of 423 MHz (about 63% centered at 670 MHz) and 50 MHz (about 3% centered at 1.465 GHz). It shows good impedance and radiation characteristics over the frequency bands (DVB‐H and SDMB) of interest. The simulated and measured return loss results are in good agreement. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 1054–1056, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23291

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A novel dual band antenna for DVB-H (Digital Video Broadcasting-Handheld) and T-DMB (Terrestrial Digital Multimedia Broadcasting) services are presented. By adjusting the gap distance between the long and short bar-shape metal plates, wide and dual band properties are achieved. The proposed antenna shows good impedance and radiation characteristics for DVB-H band (470 MHz to 870 MHz) and T-DMB band (1.45 GHz to 1.48 GHz). The measured return losses over the frequency band of interest are better than -10 dB. In addition, good radiation patterns are also obtained. The measured results are compared with calculated results using Ansoft HFSS (High Frequency Structure Simulator).

A compact dipole antenna for the terrestrial digital multimedia broadcasting (TDMB) application is presented. The length of the antenna is about 0.06λ at the TDMB resonance frequency of 190 MHz. Miniaturization of the antenna is achieved by using meander structures and lumped elements. The proposed antenna has two resonance frequencies and covers the TDMB band from 174 MHz to 216 MHz in Korea. The antenna has good impedance bandwidth and radiation characteristics for the TDMB. The experimental results of the designed dipole antenna are presented and analyzed.

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