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A novel coplanar waveguide (CPW)-fed printed antenna with two asymmetric U-shaped strips is designed and analysed for ultra-wideband wireless applications. The asymmetric radiating structure with two U-shaped strips and a staircase-shaped strip is adopted in the proposed antenna which broadens the bandwidth to a great extent. The dimensions of the antenna are only 23 x 25.5 x 1.6 mm. The antenna yields...
A planar integrated w-band microstrip high order frequency multiplier is presented. The active device is an avalanche diode operating in its high order frequency multiplication mode. For measurement and tuning purposes, the multiplier circuits are mounted in a cavity mesa and tuned by a top column stub. Output power of 5.78 MW has been obtained at output frequency of 94.5 GHz with 15th multiplication...
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