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In this paper, a double dielectric superstrate layer DSL above a microstrip patch antenna in 60 GHz; based on the recent developed standards requirements; is studied and designed. The effects of microstrip antenna with a double superstrate layer on its gain, directivity and resonant characteristics is presented. We simulated the gain of antennas within and without a double superstrate layer. The maximum...
With many advantages of rectangular waveguide and microstrip lines, substrate integrated waveguide (SIW) can be used for design of planar waveguide-like slot antenna. However, the bandwidth of this kind of antenna structure is limited. In this work, a parasitic dipole is introduced and coupled with the SIW radiate slot. The results have indicated that the proposed technique can enhance the bandwidth...
This paper presents a new dielectric resonator antenna (DRA) for wideband applications, which has a stepped construction-the hexagon shaped upper resonator and triangle shaped lower resonator. The DRA is excited by a conformal inverted-trapezoidal patch connected to a microstrip line. The wider bandwidth is achieved, because of three factors: compact honeycomb and triangle shaped dielectric resonator,...
Communication terminals for WLAN and similar systems require omni-directional antennas which can be used as a single radiator or in array and MIMO arrangements. The paper proposes to use low-profile top-loaded monopole and top-loaded folded monopole radiators and the integration into planar circuits where the radiators are directly fed (without a launcher) by microstrip line. The design and performance...
A 53 dB gain limiting amplifier for OC-192 and 10 GbE applications is developed in a 50 GHz fT SiGe SOI complimentary bipolar process, and has 5 mV pk-pk sensitivity, 1.25 V pk-pk maximum input signal, 14 ps (20/80%) rise/fall times and 450 mV pk-pk output into matched differential 50 Ohm loads, consuming 430 mW on a 3.3 V supply. Input Cherry-Hooper gain stages limit the -3 dB bandwidth to 11 GHz...
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