Full Ka‐band right‐angle transition from substrate integrated waveguide to air‐filled rectangular waveguide. Issue 22 (13th October 2015)

• Record Type: Journal Article
• Authors: Dong, Jun; Yang, Ziqiang; Peng, Hao; Yang, Tao
• Is Part Of: Electronics letters. Volume 51:Issue 22(2015)
• Page Start: 1796
• Page End: 1798
• Publication Date: 2015-10-13
• Subjects: substrate integrated waveguides -- ridge waveguides -- impedance matching -- electric fields; Ka band right angle transition -- substrate integrated waveguide -- air filled rectangular waveguide -- two step ridged waveguide -- etched slot -- electric field -- impedance matching -- back‐to‐back transition -- frequency 26.5 GHz to 40 GHz; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2015.2462
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A full Ka‐band right‐angle transition from a substrate integrated waveguide (SIW) to an air‐filled rectangular waveguide is proposed. A two‐step ridged waveguide and the SIW with an etched slot are jointly designed to obtain a better electric field and impedance matching between the SIW and the air‐filled rectangular waveguide. To verify the method, a back‐to‐back transition prototype at Ka‐band is designed, fabricated and measured. The measured results show that the insertion loss of a single transition is <0.55 dB over the entire Ka‐band from 26.5 to 40 GHz. Moreover, the 15 dB fractional bandwidth is increased from 25.7 to 40.9% compared with conventional right‐angle SIW‐to‐waveguide transition. This broadband transition can be a good candidate for broadband millimetre‐wave applications.