JP2001257630A - 無線通信システム - Google Patents

無線通信システム

Info

Publication number
JP2001257630A
JP2001257630A JP2000269110A JP2000269110A JP2001257630A JP 2001257630 A JP2001257630 A JP 2001257630A JP 2000269110 A JP2000269110 A JP 2000269110A JP 2000269110 A JP2000269110 A JP 2000269110A JP 2001257630 A JP2001257630 A JP 2001257630A
Authority
JP
Japan
Prior art keywords
communication system
wireless communication
equalizer
resonators
filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2000269110A
Other languages
English (en)
Japanese (ja)
Other versions
JP2001257630A5 (enExample
Inventor
Amr Abdelmonem
アムル アブデルモネム，
Stephen K Remillard
スティーヴン ケイ． レミラード，
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ILLINOIS SUPER CONDUCTOR CORP
Original Assignee
ILLINOIS SUPER CONDUCTOR CORP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ILLINOIS SUPER CONDUCTOR CORP filed Critical ILLINOIS SUPER CONDUCTOR CORP
Publication of JP2001257630A publication Critical patent/JP2001257630A/ja
Publication of JP2001257630A5 publication Critical patent/JP2001257630A5/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/207—Hollow waveguide filters
    • H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
JP2000269110A 2000-02-28 2000-09-05 無線通信システム Pending JP2001257630A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US51440300A 2000-02-28 2000-02-28
US09/514403 2000-02-28

Publications (2)

Publication Number Publication Date
JP2001257630A true JP2001257630A (ja) 2001-09-21
JP2001257630A5 JP2001257630A5 (enExample) 2007-10-18

Family

ID=24046976

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000269110A Pending JP2001257630A (ja) 2000-02-28 2000-09-05 無線通信システム

Country Status (5)

Country Link
EP (1) EP1264361A1 (enExample)
JP (1) JP2001257630A (enExample)
KR (1) KR100804201B1 (enExample)
AU (1) AU2001241865A1 (enExample)
WO (1) WO2001065631A1 (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030052677A (ko) * 2001-12-21 2003-06-27 주식회사 엘지이아이 초전도 필터와 ｌｎａ 일체형 패키지 및 그 튜닝장치
KR100480731B1 (ko) * 2003-03-18 2005-04-07 엘지전자 주식회사 이동통신 기지국의 고온초전도 필터시스템
JP2011250428A (ja) * 2004-11-19 2011-12-08 Qualcomm Incorporated 狭帯域雑音低減のためのフィルタ及び可調整遅延ユニット

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003307208A (ja) 2002-02-13 2003-10-31 Murata Mfg Co Ltd ネジ固定具、それを用いた高周波機器およびその特性調整方法
AUPS216702A0 (en) * 2002-05-07 2002-06-06 Microwave and Materials Designs IP Pty Filter assembly
KR100899103B1 (ko) * 2008-11-19 2009-05-27 에프투텔레콤 주식회사 Ｉｓｍ 대역용 멀티플렉서 필터
GB201000228D0 (en) * 2010-01-06 2010-02-24 Isotek Electronics Ltd An electrical filter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0736923A1 (en) * 1995-04-03 1996-10-09 Com Dev Ltd. Dispersion compensation technique and apparatus for microwave filters
JPH10126290A (ja) * 1996-10-22 1998-05-15 N T T Ido Tsushinmo Kk 高感度無線機
JPH10224154A (ja) * 1997-01-31 1998-08-21 Idotai Tsushin Sentan Gijutsu Kenkyusho:Kk 低雑音増幅器
WO1998038690A1 (de) * 1997-02-26 1998-09-03 Robert Bosch Gmbh Anordnung zur entzerrung eines frequenzsignals, insbesondere für eine satellitenkommunikationsanlage
WO2000008775A1 (en) * 1998-08-06 2000-02-17 Illinois Superconductor Corporation Rf receiver having cascaded filters and an intermediate amplifier stage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09246861A (ja) * 1996-03-06 1997-09-19 Seiko Epson Corp 超電導デバイス装置
US5804534A (en) * 1996-04-19 1998-09-08 University Of Maryland High performance dual mode microwave filter with cavity and conducting or superconducting loading element
JP2807785B2 (ja) * 1996-05-21 1998-10-08 防衛庁技術研究本部長 超伝導磁力計
KR100348748B1 (ko) * 1999-08-25 2002-08-14 주식회사 쏠리테크 무선 신호 송수신 방법 및 무선 신호 지연 등화 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0736923A1 (en) * 1995-04-03 1996-10-09 Com Dev Ltd. Dispersion compensation technique and apparatus for microwave filters
JPH10126290A (ja) * 1996-10-22 1998-05-15 N T T Ido Tsushinmo Kk 高感度無線機
JPH10224154A (ja) * 1997-01-31 1998-08-21 Idotai Tsushin Sentan Gijutsu Kenkyusho:Kk 低雑音増幅器
WO1998038690A1 (de) * 1997-02-26 1998-09-03 Robert Bosch Gmbh Anordnung zur entzerrung eines frequenzsignals, insbesondere für eine satellitenkommunikationsanlage
WO2000008775A1 (en) * 1998-08-06 2000-02-17 Illinois Superconductor Corporation Rf receiver having cascaded filters and an intermediate amplifier stage

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030052677A (ko) * 2001-12-21 2003-06-27 주식회사 엘지이아이 초전도 필터와 ｌｎａ 일체형 패키지 및 그 튜닝장치
KR100480731B1 (ko) * 2003-03-18 2005-04-07 엘지전자 주식회사 이동통신 기지국의 고온초전도 필터시스템
JP2011250428A (ja) * 2004-11-19 2011-12-08 Qualcomm Incorporated 狭帯域雑音低減のためのフィルタ及び可調整遅延ユニット
JP2011250427A (ja) * 2004-11-19 2011-12-08 Qualcomm Incorporated 狭帯域雑音低減のためのフィルタ及び可調整遅延ユニット
US8243864B2 (en) 2004-11-19 2012-08-14 Qualcomm, Incorporated Noise reduction filtering in a wireless communication system

Also Published As

Publication number Publication date
AU2001241865A1 (en) 2001-09-12
WO2001065631A1 (en) 2001-09-07
EP1264361A1 (en) 2002-12-11
KR20010085235A (ko) 2001-09-07
KR100804201B1 (ko) 2008-02-18

Similar Documents

Publication Publication Date Title
US20090267851A1 (en) Tunable duplexing antenna and methods
US6622028B1 (en) Receiver front-end having a high-temperature superconducting filter and a bypass path
WO2008110040A1 (en) Double frequency combiner
US6711394B2 (en) RF receiver having cascaded filters and an intermediate amplifier stage
JP2002527973A (ja) 超伝導共振子を使用した二重動作モードフィルタ
US20020118080A1 (en) Filter apparatus, duplexer, and communication apparatus
JP2001257630A (ja) 無線通信システム
JP3857243B2 (ja) フィルタ回路
US20050164888A1 (en) Systems and methods for signal filtering
JP4149690B2 (ja) 超電導フィルタ
US7457640B2 (en) Dielectric loaded cavity filters for non-actively cooled applications in proximity to the antenna
US20020130730A1 (en) Duplexed front-end for a radio transceiver system
US6959206B2 (en) Dual-duplexed, tower-top front-end for a radio transceiver system
KR100586321B1 (ko) 초전도 필터 서브 시스템용 송수신 결합형 듀플렉서
Izadpanah et al. Reconfigurable low power, light weight wireless system based on the RF MEM switches
CN118399079B (zh) 一种l/s双频双圆极化高精度信号监测接收天线
Choi et al. A novel microstrip transversal bandpass filter with simultaneous size reduction and spurious responses suppression
JP3558260B2 (ja) 高感度基地局無線装置
Liu et al. High-Temperature Superconducting Microwave Circuits and Applications
Pumee et al. Dual-Mode Diplexer using Stepped-impedance Resonator with Controllable Transmission-zero
Kolesov et al. Cryogenic BTS receiver front end demonstrator
Knack et al. Dielectric resonator filters for UMTS systems
Ricci et al. Design and development of a prototype of hybrid superconducting receiver front-end for UMTS wireless network: First results and application perspectives
Soares et al. Dual 5 MHz PCS receiver front end
JPH11186922A (ja) 高感度無線受信機

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070905

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070905

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20091208

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100303

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20100824