Patent ID: 6965277

Claim:
A two-port non-reciprocal circuit device comprising: a permanent magnet; a ferrite member to which a DC magnetic field is applied by the permanent magnet; a first central electrode provided on the ferrite member; a second central electrode provided on the ferrite member, the first and second central electrodes crossing each other and being electrically insulated from each other; a first resistor which is electrically connected between a first end of the first central electrode and a first end of the second central electrode; a second resistor which is electrically connected between a second end of the first central electrode and a second end of the second central electrode; a first terminal which is electrically connected to the first end of the first central electrode and a second terminal which is electrically connected to the second end of the first central electrode; and a third terminal which is electrically connected to the first end of the second central electrode and a fourth terminal which is electrically connected to the second end of the second central electrode; wherein the first and second terminals are balanced input terminals and the third and fourth terminals are balanced output terminals.