Abstract
In this letter, a novel wideband 180 <formula formulatype="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex Notation="TeX">$^{\circ}$</tex></formula> phase shifter with excellent phase and amplitude balance is presented and a new wideband millimeter-wave planar balun is proposed for the first time. The proposed balun consists of a wideband Wilkinson divider for power splitting followed by two microstrip-coplanar stripline (CPS)-microstrip transitions for broadband 180 <formula formulatype="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex Notation="TeX">$^{\circ}$</tex></formula> phase shift. Good broadband phase and amplitude balance performances are achieved according to the inherent wideband characteristics of the Wilkinson divider and microstrip-CPS-microstrip transition and symmetry of the structure. A new ka-band planar balun has been fabricated and measured. Measured results show that the return loss, isolation, amplitude imbalance, and phase imbalance are better than 10 dB, 14.4 dB, 0.8 dB, and 3.1 <formula formulatype="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex Notation="TeX">$^{\circ}$</tex> </formula> , respectively, over the specified frequency range from 26.5 to 40 GHz.
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.
