Article | GigaHertz 2003. Proceedings from the Seventh Symposium | Broadband small size Balun built with Lumped Components

Title:
Broadband small size Balun built with Lumped Components
Author:
Dan Kuylenstierna: Chalmers University of Technology, Sweden Peter Linnér: Chalmers University of Technology, Sweden
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Full text (pdf)
Year:
2003
Conference:
GigaHertz 2003. Proceedings from the Seventh Symposium
Issue:
008
Article no.:
050
No. of pages:
4
Publication type:
Poster
Published:
2003-11-06
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press; Linköpings universitet


A Small size broadband lumped element balun is presented. Analytical expressions for the component values are derived from cascade analysis. The design is a development of the out-of-phase power splitter of second order. This balun maintains the same amplitude balance as the out-of-phase power splitter; but has substantially improved phase balance; and a reduced size. With ideal components the phase balance is 0°; and the amplitude balance less than +/- 0.2dB over more than one octave bandwidth. An experimental demonstrator fabricated by chip components soldered on 0.8 mm PTFE laminate verifies the performance qualitatively. The size of the demonstrator; designed for 3 GHz; is 6*6 mm2.

GigaHertz 2003. Proceedings from the Seventh Symposium

Author:
Dan Kuylenstierna, Peter Linnér
Title:
Broadband small size Balun built with Lumped Components
References:

[1] R. Sturdivant;”Balun Designs for Wireless …Mixers; Amplifiers and Antennas”; Applied Microwave; Summer 1993


[2] Yeong J Yoon; et al. “Design and Characterization of Multilayer Spiral Transmission-Line Baluns”; IEEE Microwave theory thech.; Vol. 47; No 9; Sep. 1999; pp 1841-1847


[3] Samuel J. Parisi; “180o Lumped Hybrid”;IEEE MTT-S Digest;1989


[4] Hwann-Kaeo Chiou; Hao_Hsiung Lin; and Chi-Yang Chang; “Lumped-Element Compensated High/Low-Pass Balun for MMIC Double balanced Mixer”; IEEE Microwave and Guided Wave Letter; Vol 7; No. 8; Aug 1997

GigaHertz 2003. Proceedings from the Seventh Symposium

Author:
Dan Kuylenstierna, Peter Linnér
Title:
Broadband small size Balun built with Lumped Components
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