Miniaturized planar microstrip balun

Details Miniaturized planar microstrip balun Miniaturized planar microstrip balun

2006-02-14

2006-02-14

Takaoka, Dean (Department: 2817)

Wave transmission lines and networks

Coupling networks

Balanced to unbalanced circuits

C333S02400C

Reexamination Certificate

active

06998930

ABSTRACT:
A miniaturized planar microstrip balun includes first and second microstrip coupling segments that are considerably shorter than a quarter of a guide wavelength (λg/4 ). In at least one embodiment, a microstrip balun is provided that does not require the use of lumped circuit elements or short circuit terminations.

REFERENCES:
patent: 5357213 (1994-10-01), Michel et al.
patent: 6750652 (2004-06-01), Weyers et al.
patent: 6765469 (2004-07-01), Sortor
Tang, C W., “LTCC-MLC Chip-Type Balun Realized by LC Resonance Method”,Electronics Letters, 38, Issue 11,(2002),519-520.
Tang, Ching-Wen, et al., “Using Buried Capacitor in LTCC-MLC Balun”,Electronics Letters, 38, Issue 15,(2002),801-803.

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