A simple microstrip-to-CPS transition using elliptical transmission line as an Ultra-Broadband Balun

Author

Si, Li-Ming ; Sun, Hou-Jun ; Lv, Xin

Author_Institution

Dept. of Electron. Eng., Beijing Inst. of Technol., Beijing

fYear

2008

fDate

16-20 Dec. 2008

Firstpage

1

Lastpage

4

Abstract

A simple and low cost broadband microstrip-to-CPS transition using 180 degree phase offset ellipse transmission line has been investigated. From the theory analysis and numerical simulations, the two back-to-back microstrip-to-CPS transitions has better than 10 dB return loss bandwidth and less than 3 dB insertion loss bandwidth of 4.2 GHz and 3.4 GHz, respectively. The same to former studies, this uniplanar transmission lines transition should have many applications for feeding printed dipole/quasi-yagi antennas, UWB system, phased arrays, and integration with MIC or MMIC devices.

Keywords

baluns; microstrip transitions; numerical analysis; MMIC devices; UWB system; coplanar strip line; feeding printed dipole antennas; frequency 3.4 GHz; frequency 4.2 GHz; insertion loss bandwidth; loss 10 dB; numerical simulations; phase offset ellipse transmission line; phased array antenna; quasi-yagi antennas; return loss bandwidth; simple microstrip-to-CPS transition; ultra-broadband balun; uniplanar transmission lines transition; Bandwidth; Costs; Dipole antennas; Impedance matching; Insertion loss; Microstrip; Numerical simulation; Phased arrays; Transmission line theory; Transmission lines;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2008. APMC 2008. Asia-Pacific

Conference_Location

Macau

Print_ISBN

978-1-4244-2641-6

Electronic_ISBN

978-1-4244-2642-3

Type

conf

DOI

10.1109/APMC.2008.4958175

Filename

4958175