The present invention relates to a bidirectional frequency mixer, as well as a radiofrequency
transceiver system includ ing at least Such a mixer. The mixer includes two ports sepa rated …

A frequency-converting circuit and a down converter with the frequency-converting circuit
are disclosed. The above-mentioned frequency-converting circuit is used for converting an …

The present invention relates to a Sub-harmonic mixer, and more particularly, to a direct-
conversion Sub-harmonic mixer which is embodied to improve isolation characteristics of an …

2. Description of Related Art A direct-conversion receiver (or homodyne receiver) uses one
time down conversion operation in its structure for directly converting a radio frequency (RF) …

A sub-harmonic mixer two or more cascaded stages for converting a Radio Frequency
signal to an Intermediate Frequency signal. Each stage comprises a common-emitter …

This invention concerns a sub-harmonic homodyne mixer suitable for operation at the
millimeter waveband (MMW); for instance the 60 GHz RF radio band. The mixer comprises …

A circuit includes: a first line to which input and output signal terminals are connected; a first
transistor having a first terminal connected to the first line, a second terminal connected to a …