Directional coupler

Details Directional coupler Directional coupler

2008-08-20

2010-10-26

Takaoka, Dean O (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S112000

Reexamination Certificate

active

07821353

ABSTRACT:
A directional coupler includes two parallel coupled lines and two sector metal plates. The two sector metal plates are connected to a middle portion of each of the two coupled lines. Central angles of the two sector metal plate are less than 90 degrees.

REFERENCES:
patent: 7525397 (2009-04-01), Schmidt
J.L. Li et al., Microstrip directional coupler with flat coupling and high isolation, Feb. 2007, Electronic Letters, vol. 43 No. 4, 2 pages.

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