The measured results were compared with the simulated results and it shows that the antenna operates well in wideband frequency range from 2.5 to 15 GHz. The performance of the proposed balun was validated with the spiral antenna. The back-to-back microstrip to parallel strip has a return loss of better than 10 dB over a wide bandwidth from 1.75 to 15 GHz. The circuit designs were simulated and optimised using CST Microwave Studio and the simulated results are compared with the measured results. Microstrip line feed is used, simulation results are obtained using CST Microwave Studio and the fabricated antennas are measured using Wave and Antenna Training System (WATS-2002). docx), PDF File (.pdf), Text File (.txt) or read online. The dimensions of designed antenna are 17 mm × 16.66 mm with substrate at frequency 3.525 GHz. The entire circuit was fabricated on RT Duriod 5880 substrate. Design of a Microstrip Patch Antenna Using CST MicroWave Studio - Free download as Word Doc (.doc /. A Rectangular Microstrip Patch Antenna model is proposed using air as a substrate to study the characteristics of designed antenna. This balun has significantly improved bandwidth characteristics. The taper accomplishes the mode and impedance transformation. This wideband balun transition is composed of a parallel strip which is connected to the spiral antenna and a microstrip line where the width of the ground plane is gradually reduced to eventually resemble the parallel strip. This paper presents the design and implementation of a microstrip to parallel strip balun which are frequently used as balanced antennas feed.
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