Broadband Y-type Divider in Ku-band Using Substrate Integrated Waveguide

• Published in: 2019 International Semiconductor Conference (CAS) pp. 57 - 60
• Main Authors: Fu, Y., Chan, K. Y., Banciu, M. G., Ramer, R.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-10-2019
• Subjects: Bandwidth; broadband; Couplings; high order mode; Microwave antennas; Microwave filters; Microwave photonics; Power dividers; substrate integrated waveguide (SIW); Substrates; Y-type power divider
• ISBN: 1728118867; 9781728118864
• ISSN: 2377-0678
• DOI: 10.1109/SMICND.2019.8924000

This paper presents the study and analyses on substrate integrated waveguide (SIW) Y-type power dividers. In traditional configurations, a potential stop peak exists and separates the dominant frequency band. To overcome this drawback, a Y-type power divider with an enhanced bandwidth is proposed, where the reflection at the stop peak is reduced. The broadband characteristic relies on the adjustment of the TE 10 and TE 30 modes in the coupling region. The symmetric topology could ensure balanced phase and amplitude properties at two output ports. For the demonstration, the prototype is fabricated by the printed circuit board (PCB) process. Measurements agree well with simulations, and a fractional bandwidth of 50.26% around the centre frequency of 15 GHz is measured with 10 dB return loss.