A broadband half mode substrate integrated waveguide balun using composite right/left-handed transmission line

作者：Eom Dong Sik; Lee Hai Young^*

来源：Microwave and Optical Technology Letters, 2017, 59(7): 1480-1484.

DOI：10.1002/mop.30569

• Balun
• composite right/left-handed (CRLH)
• half mode substrate integrated waveguide (HMSIW)

A broadband half mode substrate integrated waveguide (HMSIW) balun using composite right/left-handed transmission line is proposed. The proposed structure is consisted of a broadband microstrip Wilkinson power divider and two phase adjusted-HMSIWs, new CRLH-HMSIW and HMSIW thru. The broadband microstrip Wilkinson power divider is bridged with the HMSIW in/outputs. The new CRLH-HMSIW is designed with surface mounted capacitors and printed circuit board (PCB) embedded inductors on the open edge of the HMSIW. The measured prototype shows a 1dB amplitude imbalance and 180 degrees +/- 5 degrees phase difference in a frequency band of 8-13.3GHz, which has 50% fractional bandwidth. The simulation shows a good agreement with the measurement.

• 出版日期2017-7