IMAGE REJECTION MIXER, QUADRATURE MIXER AND RECEIVER

Title:

IMAGE REJECTION MIXER, QUADRATURE MIXER AND RECEIVER

Document Type and Number:

Japanese Patent JP2009021944

Kind Code:

A

Abstract:

To remove an image signal without mounting an in-phase distributor for LO wave distribution.

An image rejection mixer is disclosed which is equipped with: a 90 hybrid 3 for distributing an RF signal and an LO wave into signals of phases different at 90; a first higher harmonic mixer 4 for mixing one-side distributed RF signal and LO wave to output an IF signal; a phase shifting line 5 for changing phases of other-side distributed RF signal and LO wave; and a second higher harmonic wave mixer 6 for mixing the other-side phase-changed RF signal and LO wave to output an IF signal, wherein a 90 hybrid 7 synthesizes the IF signal output from the first higher harmonic wave mixer 4 with the IF signal output from the second higher harmonic wave mixer 6.

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Inventors:

SHIMOZAWA MITSUHIRO
KANAZAWA SATOSHI
UEDA HIROTAMI
NAKAJIMA KENSUKE
SUEMATSU KENJI

Application Number:

JP2007184617A

Publication Date:

January 29, 2009

Filing Date:

July 13, 2007

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP

International Classes:

H03D7/18; H03D7/14; H04B1/26

Attorney, Agent or Firm:

Hideaki Tazawa
Hamada Hatsune

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