Title :
A compact broadband quadrature power splitter on LTCC
Author :
Huang, Po-Sheng ; Chang, Yi-Long ; Lu, Hsin-Chia
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
In this paper a compact broadband quadrature power splitter (QPS) on LTCC and its design procedure are presented. With suitable design of layout and fabricated on LTCC (low temperature cofired ceramic), both the high pass network and parasitic component are considered for bandwidth extension. This will enhance the fractional bandwidth of the phase adjusting network as well as the input matching bandwidth for QPS. The measured results show a phase error of less than +/- 5° and a power imbalance at output port of less than 0.6dB from 2.9~7.2GHz. The return loss and isolation is better than 10 dB. The size of QPS excluding pad is 7.1mm×6.2mm.
Keywords :
ceramic packaging; network synthesis; power dividers; LTCC; bandwidth extension; compact broadband QPS; compact broadband quadrature power splitter; fractional bandwidth enhancement; frequency 2.9 GHz to 7.2 GHz; high pass network; input matching bandwidth; isolation loss; low temperature cofired ceramic; output port power imbalance; parasitic component; phase adjusting network; phase error measurement; return loss; Bandwidth; Inductors; Layout; MIM capacitors; Microstrip; Phase shifters; Resonant frequency; LTCC; phase shifter; quadrature power splitter (QPS);
Conference_Titel :
Microwave Conference Proceedings (APMC), 2011 Asia-Pacific
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4577-2034-5
