Title :
A compact multilayered magic-T in microstrip form and its application to microwave sampler
Author :
Ma, Tzyh-Ghuang ; Chou, Chin-Feng
Author_Institution :
Department of Electrical Engineering, National Taiwan University of Science and Technology, No.43, Keelung Rd. Sec. 4, Taipei 10607, Taiwan (R.O.C.)
Abstract :
In this paper we discuss a new compact multilayered magic-T in microstrip form. By utilizing a wideband microstrip-to-slotline Marchand balun and a chip resistor, the proposed design features an improved bandwidth of 94.2%. A microwave sampler is developed in this paper as well by incorporating the proposed magic-T with a balanced sampling bridge. The new sampler can be implemented in the RF front-end of a time-domain reflectometry measuring instrument or an ultrawideband wireless sensor node. The design concept, circuit topology, and simulated and experimental results in both frequency and time domains of the proposed designs will be investigated throughout the paper.
Keywords :
baluns; microstrip lines; network topology; slot lines; Marchand balun; RF front-end; chip resistor; circuit topology; compact multilayered magic-T; microstrip form; microwave sampler; time-domain reflectometry; ultrawideband wireless sensor node; wideband microstrip-to-slotline; Bandwidth; Bridge circuits; Impedance matching; Microstrip; Radio frequency; Reflectometry; Resistors; Sampling methods; Time domain analysis; Wideband; Magic-T; Multilayered circuit; aperture coupling slotline; microstrip line; microwave sampler;
Conference_Titel :
Microwave Symposium Digest, 2008 IEEE MTT-S International
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-1780-3
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2008.4632975
