The design of inphase power divider based on transversal signal interaction technique

Abstract

A wideband inphase power divider based on signal interaction technique and slotline technique is proposed in this article. On the one hand, this power divider breaks conventional quarter-wavelength slotline configuration so that the lumped resistor can be soldered. On the other hand, quarter-wavelength short-ended coupled line and three quarters-wavelength transversal transmission line are introduced to obtain a bandpass filtering response. A prototype inphase power divider is designed and fabricated to demonstrate the performance of the proposed wideband power divider. The simulated and measured results show that there is a good performance in passband 3.9–10 GHz. In addition, the stopband (attenuation more than 20 dB) reach up to about 4.8 GHz (11.2–16 GHz) from the experimental data.

Keywords:

• bandpass response
• high isolation
• power divider
• slotline
• signal interaction technique

Additional information

Funding

Funding. This work was sponsored by the National Natural Science Foundation of China [grant number 61006026]; and the Fundamental Research Funds for the Central Universities [grant number ZYGX2012J030].