DocumentCode :
3159435
Title :
LTCC Full-Matching Marchand Balun
Author :
Guo, Y.X. ; Zhang, Z.Y. ; Ong, L.C.
Author_Institution :
Inst. for Infocomm Res. I
fYear :
2006
fDate :
10-15 Sept. 2006
Firstpage :
76
Lastpage :
78
Abstract :
In this paper, one full-matching Marchand balun is implemented in LTCC. To realize resistors to achieve matching at both balanced ports, co-fired surface resistors are employed at the top and bottom layers in the design. For demonstration, one sample balun operating at 2.4 GHz is designed, simulated, fabricated and measured. The measured return loss for the unbalanced port is found to be better than -10 dB over the frequency band from 2.0 GHz to 2.8 GHz, or around 33%. The measured return losses for both balanced ports are better than -10 dB across the operating band. The measured amplitude and phase imbalance between both balanced output ports are within 1 dB and plusmn2deg, respectively, over the passband. It is observed that the measured and simulated results are in reasonably good agreement
Keywords :
UHF circuits; baluns; ceramic packaging; 2.0 to 2.8 GHz; LTCC; amplitude imbalance; balanced ports; co-fired surface resistors; full-matching Marchand balun; phase imbalance; return loss; unbalanced port; Circuits; Frequency measurement; Impedance matching; Loss measurement; Passband; Phase measurement; Radio frequency; Resistors; Transmission lines; Wireless communication; LTCC; Marchand balun; balun; full-matching balun;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave Conference, 2006. 36th European
Conference_Location :
Manchester
Print_ISBN :
2-9600551-6-0
Type :
conf
DOI :
10.1109/EUMC.2006.281185
Filename :
4057750
Link To Document :
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