Title :
A miniaturized filtering power divider with wide stopband
Author :
Kai Xu Wang ; Hang Wong ; Jun Xiang ; Xiu Yin Zhang
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, China
Abstract :
This paper presents a miniaturized power divider integrated with wide-stopband bandpass responses. Two K-inverters with bandpass functions are utilized to replace the two quarter-wavelength transmission lines in the conventional Wilkinson power divider. The K-inverter consists of transmission lines and capacitors which can reduce the occupied area and suppress the high-order harmonics. Theoretical analysis is carried out and design equations are derived. For demonstration, a filtering power divider operating at 470 MHz is implemented with the wide stopband up to 4 GHz. The circuit size is 0.033 λg × 0.044 λg, featuring compact size.
Keywords :
band-pass filters; band-stop filters; capacitors; microwave filters; power dividers; transmission lines; K-inverters; Wilkinson power divider; capacitors; filtering power divider; frequency 470 MHz; high-order harmonics; quarterwavelength transmission lines; wide-stopband bandpass responses; Band-pass filters; Capacitors; Couplings; Frequency measurement; Power dividers; Power harmonic filters; Power divider; bandpass filter; compact size; integration; wide stopband;
Conference_Titel :
Antennas and Propagation (ISAP), 2014 International Symposium on
Conference_Location :
Kaohsiung
DOI :
10.1109/ISANP.2014.7026527