Title:
CROSSING POLARIZED WAVE ELIMINATING DEVICE AND POLARIZED WAVE STATE CORRECTION METHOD
Document Type and Number:
Japanese Patent JPH09121201
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To reduce the cross polarization interference in the frequency recycle system such as a radio transmission reception system by an electric control. SOLUTION: An antenna means 12 receives a 1st electromagnetic signal with a frequency in a given frequency channel and received in a 1st polarization state and a 2nd electromagnetic signal with a frequency in the same given frequency channel and received in a 2nd polarization state different from the 1st polarization state and provides an output of a 1st antenna output signal including received polarization energy arrived in the 1st polarization state and of a 2nd antenna output signal including received polarization energy arrived in the 2nd polarization state. Circuit means 21, 22 send the antenna output signals to a combination means in relative amplitude and phase optimized in a way that most of the signal energy of the 1st electromagnetic signal is included but the most of the signal energy of the 2nd electromagnetic signal is not included and the combination means generates an output cancelling the reception cross polarization energy of the 2nd electromagnetic signal.
Inventors:
JIEEMUZU RUURUZU BUROJIETSUTO
Application Number:
JP20948696A
Publication Date:
May 06, 1997
Filing Date:
August 08, 1996
Export Citation:
Assignee:
AT & T CORP
International Classes:
H01P1/161; H01Q19/02; H04B1/12; H04B7/10; H04B7/155; H04J11/00; (IPC1-7): H04J11/00; H01P1/161; H04B7/10; H04B7/155
Attorney, Agent or Firm:
Hirofumi Mimata