Abstract
A compact directional coupler with high directivity is presented. The coupling passbands characteristics of the multisections coupler which cascades two coupled lines via transmission line are analyzed. In addition, asymmetric coupled line and stepped impedance matching method are used to generate the isolation zero. A 2.45 GHz coupler is designed and implemented. The 3 dB bandwidth of the coupling is from 1.2 to 3.55 GHz with the corresponding fractional bandwidth (FBW) of 98%, and the directivity is better than 20 dB from 0.5 to 3.5 GHz. The proposed coupler presents small size and excellent directivity compared with the traditional parallel coupled line coupler.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
