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The bandwidths of two aperture stacked patch antennas have been combined successfully into a single large bandwidth using microwave photonic techniques. The antenna system produces a 10 dB return loss bandwidth of approximately 105 % with average gain level of 5 dBi and amplitude variation of plusmn1.5 dB. Radiation analysis shows the level of interaction of the two antennas according to their relative...
This paper presents the design and simulation of a broadband microstrip spiral antenna incorporated with chip resistors embedded in the substrate. A single arm version of an equiangular spiral antenna is investigated. The effect of strategically loading the spiral with chip resistors is explored in terms of the simulated return loss, gain, axial ratio and radiation pattern.
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