@article{62fedaca3a1b4893882b8ec28f19e3a9,
title = "A fully symmetrical crossover and its dual-frequency application",
abstract = "In this paper, a new fully symmetrical four-port microstrip crossover and its dual-frequency application are presented. The proposed single-band crossover has a simple structure and an easily controlled bandwidth; and its dual-frequency application can provide flexible frequency ratio between the two working frequencies. Moreover, analytical design equations are derived using the even-odd-mode method. The final explicit design equations are concise. To verify the design concepts, both a single-band crossover working at 1 GHz and a dual-frequency crossover working at 1/2.3 GHz are fabricated and tested. The measurement results agree well with the design theory.",
keywords = "Controllable bandwidths, crossover, dual frequency, even-odd mode, fully symmetrical",
author = "Jin Shao and Han Ren and Bayaner Arigong and Changzhi Li and Hualiang Zhang",
note = "Funding Information: Manuscript received November 20, 2011; revised April 18, 2012; accepted April 23, 2012. Date of publication June 05, 2012; date of current version July 30, 2012. This work was supported in part by the Cancer Prevention Research Institute of Texas (CPRIT). J. Shao, H. Ren, B. Arigong, and H. Zhang are with the Electrical Engineering Department, University of North Texas, Denton, TX 76207 USA (e-mail: hualiang.zhang@unt.edu). C. Li is with the Electrical and Computer Engineering Department, Texas Tech University, Lubbock, TX 79409-2013 USA. Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TMTT.2012.2198229",
year = "2012",
doi = "10.1109/TMTT.2012.2198229",
language = "English",
volume = "60",
pages = "2410--2416",
journal = "IEEE Transactions on Microwave Theory and Techniques",
issn = "0018-9480",
publisher = "IEEE",
number = "8",
}