volume | PIER Journals

2020-05-24

Compact Dual-Band Wilkinson Power Divider Terminated with Frequency-Dependent Complex Impedances

Xiao Jia,

Dr. Xiao Jia

School of Information Science and Technology

Dalian Maritime University

China

Homepage

Shao-Jun Fang,

Prof. Shao-Jun Fang

Information Engineering College

Dalian Maritime University

China

Homepage

Hongmei Liu,

Dr. Hongmei Liu

School of Information Science and Technology

Dalian Maritime University

China

Homepage

Zhongbao Wang

Dr. Zhongbao Wang

School of Information Science and Technology

Dalian Maritime University

China

Homepage

Progress In Electromagnetics Research Letters, Vol. 91, 85-91, 2020

doi:10.2528/PIERL20031901

Abstract

In the letter, a compact dual-band Wilkinson power divider terminated with frequency-dependent complex impedance (FDCI) is proposed, for the first time. It is composed of two sections of coupled lines, two shunt transmission lines and a lumped resistor. By using the coupled lines, the FDCI at two bands can be matched. Further, the design equations for the proposed power divider are derived by using the even-odd mode decomposition technology. For verification, a prototype operating at 1.0 GHz and 1.8 GHz was designed, fabricated and measured with different terminal complex impedances at the two bands. The measured results show that the proposed WPD features equal power distribution, good impedance matching/isolation at two frequency bands.

Citation

Copy Export

Xiao Jia, Shao-Jun Fang, Hongmei Liu, and Zhongbao Wang, "Compact Dual-Band Wilkinson Power Divider Terminated with Frequency-Dependent Complex Impedances," Progress In Electromagnetics Research Letters, Vol. 91, 85-91, 2020.
doi:10.2528/PIERL20031901

References

1. Park, M. and B. Lee, "A dual-band Wilkinson power divider," IEEE Microwave and Wireless Components Letters, Vol. 18, No. 2, 85-87, Feb. 2008.
doi:10.1109/LMWC.2007.915031

2. Park, M., "Dual-band Wilkinson divider with coupled output port extensions," IEEE Transactions on Microwave Theory and Techniques, Vol. 57, No. 9, 2232-2237, Sept. 2009.
doi:10.1109/TMTT.2009.2027169

3. Wu, Y., Y. Liu, and Q. Xue, "An analytical approach for a novel coupled-line dual-band Wilkinson power divider," IEEE Transactions on Microwave Theory and Techniques, Vol. 59, No. 2, 286-294, Feb. 2011.
doi:10.1109/TMTT.2010.2084096

4. Wang, X., Z. Ma, and M. Ohira, "Theory and experiment of two-section two-resistor Wilkinson power divider with two arbitrary frequency bands," IEEE Transactions on Microwave Theory and Techniques, Vol. 66, No. 3, 1291-1300, Mar. 2018.
doi:10.1109/TMTT.2017.2772848

5. Ahn, H.-R. and S. Nam, "3-dB power dividers with equal complex termination impedances and design methods for controlling isolation circuits," IEEE Transactions on Microwave Theory and Techniques, Vol. 61, No. 11, 3872-3883, Nov. 2013.
doi:10.1109/TMTT.2013.2281101

6. Hallberg, W., M. Ozen, D. Kuylenstierna, K. Buisman, and C. Fager, "A generalized 3-dB Wilkinson power divider/combiner with complex terminations," IEEE Transactions on Microwave Theory and Techniques, Vol. 66, No. 10, 4497-4506, Oct. 2018.
doi:10.1109/TMTT.2018.2859305

7. Monzon, C., "A small dual-frequency transformer in two sections," IEEE Transactions on Microwave Theory and Techniques, Vol. 51, No. 4, 1157-1161, Apr. 2003.
doi:10.1109/TMTT.2003.809675