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A circularly polarized stacked patch antenna with a perpendicular feed substrate is presented. The antenna uses a new type of transition to couple from the patch to the microstrip feed line, and is demonstrated to operate in a scanning linear array at 20 GHz. Coupling from the stacked patch to the perpendicular microstrip feed is through a slot in the ground plane of both the stacked patch and the...
This paper describes a new broadband microstrip to coplanar strip (CPS) line transition, where supporting substrates are joined perpendicularly, one containing the CPS line and the other one the microstrip line. The CPS line is coupled to the microstrip line through a symmetric slot radial stub placed in the ground plane of the microstrip line substrate. A measured return loss greater than 10dB is...
This work shows the design of stripline beam-former network components at 9.5GHz in liquid crystal polymer. Particular emphasis is placed in the implementation of via fences to minimize radiation loss and cross coupling of radio frequency (RF) signals to other bias and digital lines that would feed multiple chips in a single antenna package. Additionally, a Coplanar-Waveguide-to-Stripline transition...
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