A SIMPLE LOW-LOSS BROADBAND 1-14 GHz MICROSTRIP-TO-SLOTLINE TRANSITION

作者：Wang Nai Biao^*; Jiao Yong Chang; Zhang Li; Song Yue; Zhang Fu Shun

来源：Microwave and Optical Technology Letters, 2009, 51(9): 2236-2239.

DOI：10.1002/mop.24518

• microstrip line
• slotline
• transition
• balun

The improved version of a broadband microstrip-to-slotline transition is presented. The transition consists of a microstrip radial stub, a slot radial stub, and a multisection matching transformer. All extremely large angle slot radial stub is introduced into the design to reduce radiation loss and maximize the field converting around the microstrip-slotline tee junction. Front experimental results, the improved transition has greater bandwidth and lower loss than the earlier designs. With the return loss of better than 15 dB. the 1- and 3-dB back-to-back insertion loss bandwidth can cover from 1.04 to 5.13 GHz (1 : 4.9) and from 1.02 to 13.90 GHz (1:13.6), respectively. The proposed planar transition has the advantages of compact size, wide bandwidth, simple structure, and straight forward design procedure.

• 出版日期2009-9
• 单位西安电子科技大学