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Compact Pixelated Microstrip Forward Broadside Coupler Using Binary Particle Swarm Optimization
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DOI：10.1109/TCSI.2023.3314621.png)
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Abstract
En 中文
In this paper, a compact microstrip forward broadside coupler (MFBC) with high coupling level is proposed in the frequency band of 3.5 similar to 3.8 GHz. The coupler is composed of two parallel pixelated transmission lines. To validate the design strategy, the proposed MFBC is fabricated and measured. The measured results demonstrate a forward coupler with 3 dB coupling, and a compact size of 0.12 lambda g x 0.10 lambda g. Binary Particle Swarm Optimization (BPSO) design methodology and flexibility of pixelation enable us to optimize the proposed MFBC with desired coupling level and operating frequency within a fixed dimension. Also, low sensitivity to misalignment between two coupled TLs makes the proposed coupler a good candidate for near-field Wireless Power Transfer (WPT) application and sensors.
Keywords:
Binary particle swarm optimization
broadside forward coupling
flexible design method
pixelated near field coupler
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