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An on-ground internal antenna for FM radio reception in mobile phones is proposed and evaluated. By combining a parasitic loop radiator with a driven active monopole antenna, a dual resonant frequency response is achieved with an average effective antenna efficiency of -22.5 dB over the frequency band 88-108 MHz. The total volume of the antenna is 0.93 cm3 with a height above ground of 4 mm. A comparison...
An antenna concept for FM radio reception in mobile phones is proposed and evaluated. By resonating a loop or monopole radiator with a shunt element and connecting the antenna to a high-impedance low noise amplifier, an equivalent antenna efficiency of -24??3 dB is achieved over the entire band of 88 - 108 MHz despite having high-Q gain characteristics and without using control voltages for frequency...
A ferrite loaded multi-turn loop antenna is proposed and evaluated for reception of FM radio in mobile phones. By co- designing the antenna element with an amplifier and using varactor diodes for frequency tuning, a G/T degradation compared to an ideal dipole antenna in a realistic urban environment of less than 23 dB over the entire FM band 88 - 108 MHz has been achieved. The antenna element occupies...
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