	US 7,598,824 B2
	Splitter/combiner circuit
Clyde Maynord Callewaert, Shelby Township, Mich. (US)
Assigned to M/A-COM Technology Solutions Holdings, Inc., Lowell, Mass. (US)
Filed on Nov. 14, 2006, as Appl. No. 11/599,541.
Claims priority of provisional application 60/782387, filed on Mar. 15, 2006.
Claims priority of provisional application 60/830971, filed on Jul. 14, 2006.
Prior Publication US 2007/0216495 A1, Sep. 20, 2007
Int. Cl. H01P 5/12 (2006.01)

U.S. Cl. 333—134 [333/126]

29 Claims

1. A circuit for combining/splitting a first RF signal having wavelength of x, and a second RF signal having a wavelength of y, said circuit comprising:

first and second transmission portions coupled at an intersection, said first transmission portion comprising at least two intersecting transmission lines, each having a length which is an odd multiple of about ¼ y, said second transmission portion comprising at least two intersecting transmission lines, each having a length which is an odd multiple of about ¼ x, wherein x and y differ by a multiple of ½ x±⅛ x; and

first, second and third ports, said first port located at said first port transmission portion, said second port located at said intersection of said first and second transmission portions, and said third port being located at said second transmission portion, said first and second ports being electrically coupled, and said second and third ports being electrically coupled.