Abstract
Multiband applications can be realized as a result of designing a double U-slot rectangular patch antenna. The equivalent circuit of a U-slot patch is presented and the return loss is theoretically derived, utilizing the [A] matrix formulation. CST Microwave Studio software was used to design the microstrip antenna with a transmission line feed and simulate return loss and radiation patterns. The antenna was fabricated in-house using a printed board CNC machine and was measured and compared for return loss using a portable network analyzer. The radiation patterns were measured using a laboratory antenna measurement system. The fabricated antenna was installed on a networked WiFi access point, and tested as far as average received power versus distance range. The antenna is simple, low-cost and easy to fabricate and measurements compared well with simulated results.
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