Title:
同調可能な直交位相シフタ
Document Type and Number:
Japanese Patent JP2005500780
Kind Code:
A
Abstract:
The present invention relates to a tunable quadrature phase shifter comprising an input (IN) for inputting an input signal (vin), splitting means (10) for splitting the input signal into two essentially orthogonal first and second signals (i1, i2), adding means (6) for adding said first and second signals (i1, i2), subtracting means (7) for subtracting said first and second signals (i1, i2), a first output (OUT+) for outputting a first output signal (vo1) based on the output signal from said adding means (6), and a second output (OUT-) for outputting a second output signal (vo2) based on the output signal from said subtracting means (7), wherein that said splitting means (10) is provided as an all-pass.
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Inventors:
Sandurayan Mihai Eighty
Application Number:
JP2003522270A
Publication Date:
January 06, 2005
Filing Date:
July 09, 2002
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
H03H11/18; H03H11/22; H03H7/18; (IPC1-7): H03H7/18; H03H11/22
Attorney, Agent or Firm:
Susumu Tsugaru
Akihiko Miyazaki
Hiroyoshi Aoki
Akihiko Miyazaki
Hiroyoshi Aoki