Balun

Wave transmission lines and networks – Coupling networks – Balanced to unbalanced circuits

Reexamination Certificate

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Details

C333S026000, C333S100000

Reexamination Certificate

active

07116185

ABSTRACT:
A balun comprises an unbalanced terminal, two balanced terminals, and two ground terminals. The balun further comprises: a low-pass filter provided between the unbalanced terminal and one of the balanced terminals; and a high-pass filter provided between the unbalanced terminal and the other of the balanced terminals. The low-pass filter incorporates two coils and a capacitor. The high-pass filter incorporates two capacitors and a coil. The coils and the capacitors are made up of conductor layers of a multi-layer substrate.

REFERENCES:
patent: 5949299 (1999-09-01), Harada
patent: 6052039 (2000-04-01), Chiou et al.
patent: 6285273 (2001-09-01), Morikawa
patent: 6850127 (2005-02-01), Sakakura et al.
patent: 1 100 193 (2001-05-01), None
patent: 917 372 (1947-01-01), None
patent: 09-260145 (1997-10-01), None
patent: 10-200360 (1998-07-01), None
patent: 2000-188218 (2000-07-01), None
patent: 2002-190413 (2002-07-01), None
Chiou et al.; “Lumped-Element Compensated High/Low-Pass Balun Design for MMIC Double-Balanced Mixer”; IEEE Microwave and Guided Wave Letters; vol. 7, No. 8; pp. 248-250; XP 000658633; Aug. 1997.
Penunuri et al.; “RF Filter Design Using LTCC and Thin Film Baw Technology”; 2001 IEEE Ultrasonics Symposium; pp. 273-278; XP 010584525; Oct. 7, 2001.
Rothammel; “Antennenbuch, 10. Auflage”; Kapitel 6 and 7, Franckh-Kosmos Verlag, Stuttgart; Germany; XP 002321146; with partial translation.
Parisi; “180 Degrees Lumped Element Hybrid”; Microwave Symposium Digest; IEEE MTT-S International; vol. 3, pp. 1243-1246; XP 010085524; Jun. 13, 1989.
Scrantom et al.; “LTCC Technology: Where We are and Where We're Going-II”; Technologies for Wireless Applications; pp. 193-200; XP 010326263; Feb. 21, 1999.

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