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This paper reports on a micromachined planar type probe based on a novel hybrid shielded stripline. The proposed structure is for a broadband transverse electromagnetic (TEM) single-mode propagation using substrate integrated waveguide (SIW) and conventional shielded stripline. We suggested a novel probe structure that composed of half-SIW and half-shielded stripline, which combined through a benzocyclobutene...
There is a great scientific and commercial interest in car radars for anti-crash and pre-crash systems, for which beamformer networks with antenna arrays are becoming the norm. In this paper a novel Butler matrix at 24 GHz using a new type of micromachined suspended transmission-line couplers presented. This configuration arranges all the couplers in the center so that no line crossovers are needed...
Directional couplers have extensive applications in microwave circuits such as beamforming networks. Recently there has been growing scientific and commercial interest in microwave components for anti-crash and pre-crash systems in cars centered at 24 GHz. In this paper a novel suspended transmission-line 3 dB coupler at 24 GHz is presented. This circuit has been micromachined on a glass-quartz substrate...
In this work, we demonstrate a novel compact mechanical beam steering transmitter based on a direct vertical integration of a 2-D MEMS-based mechanical beam steering antenna with a VCO on a single silicon platform. By eliminating the long feed lines and waveguide metal blocks, the radiation pattern has been improved vastly, resulting in an almost ideal pattern at every scan angle. The losses incurred...
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