Patent ID: 7078986

Claim:
A polyphase network comprising: first, second, third, and fourth impedances of a first type; first, second, third, and fourth impedances of a second type; a first positive in-phase terminal coupled to a first end of the first impedance of the first type and a first end of the first impedance of the second type using a first connection; a first negative in-phase terminal coupled to a second end of the fourth impedance of the first type and a second end of the fourth impedance of the second type using a second connection; a second positive quadrature-phase terminal coupled to a first end of the second impedance of the first type and a second end of the first impedance of the second type using a third connection; a second positive in-phase terminal coupled to a second end of the first impedance of the first type and a first end of the second impedance of the second type using a fourth connection; a second negative in-phase terminal coupled to a first end of the fourth impedance of the first type and a second end of the third impedance of the second type using a fifth connection; and a second negative quadrature-phase terminal coupled to a second end of the third impedance of the first type and a first end of the fourth impedance of the second type using a sixth connection; wherein the first and fourth impedances of the first type are substantially equal distances from and on a same side of a first axis, and are substantially equal distances from and on opposite sides of a symmetry axis; the second and third impedances of the first type are substantially equal distances from and on a same side of the first axis, and are substantially equal distances from and on opposite sides of the symmetry axis; the first and fourth impedances of the second type are substantially equal distances from and on a same side of a second axis, and are substantially equal distances from and on opposite sides of the symmetry axis; and the second and third impedances of the second type are substantially equal distances from and on a same side of the second axis, and are substantially equal distances from and on opposite sides of the symmetry axis.