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US 6,642,882 B2Granted
Mixer, radar module, and communication apparatus incorporating the same
AssigneeMurata Manufacturing Co., Ltd.
InventorsHidetoshi Iwatani, Sadao Yamashita
Life of this patent
Estimating the term…
Abstract
A mixer used in a millimeter-wave band and a microwave band capable of achieving loss reduction, a radar module, and a communication apparatus incorporating the mixer and having high efficiency. The mixer includes two electrodes formed on one main surface of a dielectric substrate and another electrode formed on another main surface thereof such that non-electrode portions on both main surfaces are opposed to each other via the dielectric substrate. Additionally, a diode is connected bridging a slit between the two electrodes on one main surface to constitute a circuit board. The circuit board and a dielectric strip are arranged between upper and lower conductive plates.
Claims22
A mixer comprising:
- a dielectric substrate having first and second surfaces;
- an electrode having an aperture provided on each of the first and second surfaces of the dielectric substrate such that the aperture of the electrode on the first surface is opposed to the aperture of the electrode on the second surface;
- two conductive plates arranged substantially parallel to each other, the dielectric substrate being disposed between the conductive plates to form a planar TE-mode dielectric resonator;
- a slit formed in one of the electrodes on the first and second surface of the substrate so as to be continuous with the respective aperture of the electrode having the slit;
- and
- a diode bridging the slit.
3 more elements
A single balanced mixer comprising:
- a dielectric substrate having first and second surfaces;
- an electrode having an aperture provided on each of the first and second surfaces of the dielectric substrate such that the aperture of the electrode on the first surface is opposed to the aperture of the electrode on the second surface;
- two conductive plates arranged substantially parallel to each other, the dielectric substrate being disposed between the conductive plates to form a planar TE-mode dielectric resonator;
- respective slits formed in each of the electrodes on the first and second surfaces of the dielectric substrate, the respective slits being opposed to each other and continuous with the respective electrode apertures;
- and
- a respective diode bridging each slit.
3 more elements
A radar module comprising:
- a mixer which includes:
- a dielectric substrate having first and second surfaces;
- an electrode having an aperture provided on each of the first and second surfaces of the dielectric substrate such that the aperture of the electrode on the first surface is opposed to the aperture of the electrode on the second surface;
- two conductive plates arranged substantially parallel to each other, the dielectric substrate being disposed between the conductive plates to form a planar TE-mode dielectric resonator;
- a slit formed in one of the electrodes on the first and second surface of the substrate so as to be continuous with the aperture of the electrode having the slit;
- and
- a diode bridging the slit;
- the mixer being disposed in a circuit section mixing a received signal with a local signal.
5 more elements
A radar module comprising:
- a mixer which includes:
- a dielectric substrate having first and second surfaces;
- an electrode having an aperture provided on each of the first and second surfaces of the dielectric substrate such that the aperture of the electrode on the first surface is opposed to the aperture of the electrode on the second surface;
- two conductive plates arranged substantially parallel to each other, the dielectric substrate being disposed between the conductive plates to form a planar TE-mode dielectric resonator;
- respective slits formed in each of the electrodes on the first and second surfaces of the dielectric substrate, the respective slits being opposed to each other and continuous with the respective electrode apertures;
- and
- a respective diode bridging each slit;
- the mixer being disposed in a circuit section mixing a received signal with a local signal.
5 more elements
A communication apparatus comprising:
- a mixer which includes:
- a dielectric substrate having first and second surfaces;
- an electrode having an aperture provided on each of the first and second surfaces of the dielectric substrate such that the aperture of the electrode on the first surface is opposed to the aperture of the electrode on the second surface;
- two conductive plates arranged substantially parallel to each other, the dielectric substrate being disposed between the conductive plates to form a planar TE-mode dielectric resonator;
- a slit formed in one of the electrodes on the first and surface of the substrate so as to be continuous with one the aperture of the electrode having the slit;
- and
- a diode bridging the slit;
- the mixer being disposed in a circuit section mixing one of a received signal and a transmitted signal with a local signal.
5 more elements
A communication apparatus comprising:
- a mixer which includes:
- a dielectric substrate having first and second surfaces;
- an electrode having an aperture provided on each of the first and second surfaces of the dielectric substrate such that the aperture of the electrode on the first surface is opposed to the aperture of the electrode on the second surface;
- two conductive plates arranged substantially parallel to each other, the dielectric substrate being disposed between the conductive plates to form a planar TE-mode dielectric resonator;
- respective slits formed in each of the electrodes on the first and second surfaces of the dielectric substrate, the respective slits being opposed to each other and continuous with the respective electrode apertures;
- and
- a respective diode bridging each slit;
- the mixer being disposed in a circuit section mixing one of a received signal and a transmitted signal with a local signal.
5 more elements
A mixer comprising:
- a dielectric substrate having a first surface and a second surface;
- a first electrode provided on the first surface of the dielectric substrate, the first electrode having a first aperture;
- a second electrode provided on the second surface of the dielectric substrate, the second electrode having a second aperture, the second electrode being arranged on the second surface of the dielectric substrate such that the first and second apertures are opposed to each other;
- a slit formed in one of the first and second electrodes;
- and
- a diode bridging the slit.
3 more elements
Dependencies are inferred from the claim text.