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Patent Searching and Data


Title:
PHASE SHIFT CIRCUIT
Document Type and Number:
Japanese Patent JPH06104675
Kind Code:
A
Abstract:

PURPOSE: To provide the 0°/90° phase shift circuit suitable for circuit integration by other configuration than a conventional phase shift circuit utilizing a differentiation and integration circuit or a conventional full band pass filter circuit.

CONSTITUTION: The circuit is provided with input terminals IN1, IN2 from which signals whose phases are inverted with each other are received, and a phase shift circuit 1d comprising the series connection of resistors Ra, Rb whose resistance is equal to each other, and capacitors Ca, Cb whose capacitance is equal to each other and output terminals OUT1, OUT2 extracting signals separated to 0°, 90°. Thus, the phase shift circuit optimum to an orthogonal modulator incorporating the phase shift circuit is provided.


Inventors:
YAMAMOTO KAZUYA
Application Number:
JP1992000236557
Publication Date:
April 15, 1994
Filing Date:
August 11, 1992
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H03H7/21; H04L27/20; H03B27/00; H03C3/00; H03C3/40; (IPC1-7): H03H7/21; H04L27/20
Attorney, Agent or Firm:
早瀬 憲一