Mixer circuit

Abstract

Abstract PURPOSE:To raise the image ratio without attenuating a high frequency signal, by providing a circuit, which becomes a low impedance for an intermediate frequency, and a trap circuit, which resonates in series in an image frequency, on the line to which a local oscillation signal is inputted. CONSTITUTION:A local oscillaton signal is inputted to a line 6 and is mixed with a high frequency signal, which is inputted to a line 5B, by diodes 2 and 3 and is outputted as an intermediate frequency signal from an intermediate frequency signal output terminal 8. Since the line 6 is provided with an inductance 11 which shows a low impedance for the intermediate frequency and has the grounded terminal, an inductance 9 which resonates in series for the image frequency, and a capacitor 10, the image signal is attenuated considerably.

Inventors

• 👤 Takao Shinkawa
• 👤 Masaki Noda
• 👤 Chuichi Sodeyama

Bibliographic Details