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In this paper, a frequency tunable Dual Band Inverted L Spiral Antenna (DBILSA) for Multiple Input Multiple Output (MIMO) mobile terminals is presented. Two different shapes of L-shape and spiral shape were combined to produce a dual band response. Varactor diodes were used to simultaneously tune the resonant frequency from 1900 MHz to 3100 MHz (in the lower band) and from 3300 MHz to 3700 MHz (for...
A Tunable Inverted L Antenna (TILA) for Multiple Input Multiple Output (MIMO) mobile terminals is presented. Two ILAs with different lengths and varactor diodes are combined to enable bandwidth and resonance tunability at lower and upper bands respectively. The antenna 10dB bandwidth is tunable from 2250 MHz to 2700 MHz in the lower band and from 5000 MHz to 5800 MHz in the upper band. The realized...
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