Esfahlani, HusseinTavakoli, AhadDehkhoda, Parisa2015-01-132015-01-132015-01-13201110.1109/LAWP.2011.2167121https://infoscience.epfl.ch/handle/20.500.14299/110223In this letter, a compact single-layer, single-feed, dual-frequency microstrip antenna with a high frequency ratio is proposed. This antenna has a broadside and symmetrical radiation patterns suitable for space-borne applications. The prototype was fabricated on a Rogers RT/duroid 5880 substrate with a relative permittivity of 2.2 and thickness of 1.58 mm. The dual-band behavior is achieved by a shorting pin at 1.7–1.706 and 8.011–8.277 GHz with the frequency ratio of 4.75. In addition, the antenna is miniaturized by 46% compared to the conventional rectangular patch.Compact microstrip antennaHigh frequency ratioMultifrequency antennaSatellite applicationtext::journal::journal article::research article