ATTENUATION OF IN-PHASE SIGNAL FOR DIFFERENTIAL DUPLEXER Russian patent published in 2012 - IPC H04B1/52 

Abstract RU 2461123 C2

FIELD: electricity.

SUBSTANCE: duplexer provides for a differential received signal in the RX+ and RX- ports. The received differential signal includes an in-phase noise signal that may originate from the transmitted signal. The in-phase signal is attenuated by an in-phase filter within the circuit matching impedance related to the RX+ and RX- ports. The impedance matching circuit includes the first passive circuit put in between the RX+ port and the first unit, the second passive circuit put in between the RX- port and the second unit and an in-phase filter put in between the first and the second units. In one circuit the in-phase filter includes the includes the first inductance coil put in between the first unit and the common unit, the second inductance coil put in between the second unit and the common unit and a capacitor put in between the common unit and the ground bus.

EFFECT: receiver operation improvement due to in-phase signal attenuation.

25 cl, 7 dwg

Similar patents RU2461123C2

Title Year Author Number
WIRELESS CHARGING SYSTEM AND ITS APPLICATION FOR CHARGING MOBILE AND PORTABLE DEVICES 2014
  • Khripkov Alexander Nikolaevich
  • Makurin Mikhail Nikolaevich
  • Pavlov Konstantin Alexandrovich
  • Olyunin Nikolay Nikolaevich
  • Arkhipenkov Vladimir Yakovlevich
  • Kim Dowon
RU2623095C2
SUPPRESSING TRANSMITTED SIGNAL LEAKAGE IN WIRELESS COMMUNICATION DEVICE 2008
  • Aparin Vladimir
RU2440673C2
AMPLIFIER 2016
  • Mu, Fenghao
RU2726828C1
METHOD OF CONTROL IN SYSTEMS OF WIRELESS POWER TRANSMISSION 2016
  • Olyunin Nikolay Nikolayevich
  • Makurin Mikhail Nikolayevich
  • Vilenskiy Artem Rudolfovich
  • Khripkov Alexander Nikolayevich
  • Park Sung Bum
  • Kim Do Won
RU2629956C1
METHOD OF ACHIEVING HIGH SELECTIVITY IN RECEIVER RF INPUT STAGES 2009
  • Savla Anup
  • Brokenbraf Rodzher
RU2490784C2
WIRELESS COMMUNICATION DEVICE 2013
  • Asidzuka Tettsuja
RU2554560C2
WIRELESS POWER TRANSMISSION 2008
  • Ehlo Kharri Khejkki
RU2439765C1
DOWN-CONVERSION CIRCUIT 2013
  • Din Imad Ud
  • Andersson Stefan
  • Sheland Khenrik
  • Vernekhag Jokhan
RU2605369C2
ACTIVE MAGNETIC ANTENNA WITH FERRITE CORE 2008
  • Krylov Konstantin Stanislavovich
  • Li Zhaekho
  • Kim Jang Zhin
  • Kim Seungkhvan
  • Li Sang-Kha
RU2395876C2
DEVICE AND METHOD FOR RECEIVING COMMUNICATION SIGNALS FROM PLURALITY OF RADIO-FREQUENCY BANDS (ALTERNATIVES) 1998
  • Vlakhos Konstantin
  • Pekkhehm Dehvid Saterlehnd
  • Skutta Frehnk Robert
RU2214050C2

RU 2 461 123 C2

Authors

Kabanil'Jas Khose

Gudem Prasad S.

Kvok Sai Chong

Lav Dehvid

Dates

2012-09-10Published

2008-09-10Filed