A Compact Wideband Microstrip Crossover

被引:75
作者
Liu, Wendong [1 ]
Zhang, Zhijun [1 ]
Feng, Zhenghe [1 ]
Iskander, Magdy F. [2 ]
机构
[1] Tsinghua Univ, State Key Lab Microwave & Commun, Tsinghua Natl Lab Informat Sci & Technol, Beijing 100084, Peoples R China
[2] Univ Hawaii Manoa, HCAC, Honolulu, HI 96822 USA
基金
国家高技术研究发展计划(863计划); 中国国家自然科学基金;
关键词
Coplanar waveguide (CPW) with ground; microstrip crossover; transmission line; microstrip to conductor-backed (CB)-CPW transition;
D O I
10.1109/LMWC.2012.2190270
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];
摘要
In this letter, a planar microstrip crossover junction is presented. The conductor-backed coplanar waveguide (CB-CPW) structure with vias is employed as the core part of the crossover design. The dimensions of the CB-CPW crossover itself are 11.3 x 11.3 mm(2). Two kinds of the transitions between the microstrip line (MSL) and the CB-CPW structure are merged into a double side print circuit board. This presented crossover junction has a bandwidth from 10 up to 6000 MHz for 20 dB return loss, 1 dB insertion loss and -20 dB isolation. Compared with the other designs, this planar crossover features wide bandwidth and compact configuration.
引用
收藏
页码:254 / 256
页数:3
相关论文
共 10 条
[1]
Wu S.C., Yang H.Y., Alexopoulos N.G., Wolff I., A rigorous dispersive characterization of microstrip cross and T junctions, IEEE Trans. Microw. Theory Tech., 38, 12, pp. 1837-1844, (1990)
[2]
Horng T.-S., A rigorous study of microstrip crossovers and their possible improvement, IEEE Trans. Microw. Theory Tech., 42, 9, pp. 1802-1806, (1994)
[3]
Ponchak G.E., Tentzeris E., Development of finite ground coplanar (FGC) waveguide 90 degree crossover junctions with low coupling, IEEE MTT-S Int. Dig., 3, pp. 1891-1894, (2000)
[4]
Alam M.M., Microstrip antenna array with four port butler matrix for switched beam base station application, Proc. Int. Conf. Comp. Inform. Technol., pp. 531-536, (2009)
[5]
Liu X., Yu C.P., Liu Y.A., Li S.L., Wu F., Su M., A novel compact planar crossover with simple design procedure, Proc. Asia-Pacific Microw. Conf., pp. 1633-1636, (2010)
[6]
Gupta K.C., Abouzahra M.D., Analysis and design of four-port and five-port microstrip disk circuits, IEEE Trans. Microw. Theory Tech., vol. MTT-33, 12, pp. 1422-1428, (1985)
[7]
Chen Y., Yeo S.P., A symmetrical four-port microstrip coupler for crossover application, IEEE Trans. Microw. Theory Tech., 55, 11, pp. 2434-2438, (2007)
[8]
Chiou Y.C., Kuo J.T., Lee H.R., Design of compact symmetric four-port crossover junction, IEEE Microw. Wireless Compon. Lett., 19, 9, pp. 545-547, (2009)
[9]
Wong F.-L., M. Cheng K.-K., A novel, planar, and compact crossover design for dual-band applications, IEEE Trans. Microw. Theory Tech., 59, 3, pp. 568-573, (2011)
[10]
Nedil M., Habib A.M., Denidni T.A., Novel ultra-wideband CB-CBW butler matrix, Proc. IEEE Antennas Propag. Soc. Int. Symp., pp. 1-4, (2008)