A new symmetrical coupler with high directivity and strong coupling is proposed using microstrip coupled lines. It can be used in a various RF combining, power splitting and sampling applications. The proposed coupler structure is very simple to fabricated using single-layer PCB. This coupler is designed using RT/duroid material having dielectric constant 2.2. The operating frequency is chosen as 2.1 GHz. The simulation has been done using Advance Design System (ADS) software. The simulated results show that it has good return loss, high directivity and good coupling.
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[Harish Chandra Kumawat, Dr. Priyanka Jain , Pappu Kumar Verma (2014); A Coupler with High Directivity and Strong Coupling Using Coupled Lines Int. J. of Adv. Res. 2 (8). 0] (ISSN 2320-5407). www.journalijar.com
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