GB0001458D0 - An antenna arrangement - Google Patents

An antenna arrangement

Info

Publication number
GB0001458D0
GB0001458D0 GB0001458A GB0001458A GB0001458D0 GB 0001458 D0 GB0001458 D0 GB 0001458D0 GB 0001458 A GB0001458 A GB 0001458A GB 0001458 A GB0001458 A GB 0001458A GB 0001458 D0 GB0001458 D0 GB 0001458D0
Authority
GB
United Kingdom
Prior art keywords
antenna arrangement
antenna
arrangement
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.)
Withdrawn
Application number
GB0001458A
Other versions
GB2358533A (en
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.)
Dynex Semiconductor Ltd
Original Assignee
Dynex Semiconductor Ltd
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 Dynex Semiconductor Ltd filed Critical Dynex Semiconductor Ltd
Priority to GB0001458A priority Critical patent/GB2358533A/en
Publication of GB0001458D0 publication Critical patent/GB0001458D0/en
Publication of GB2358533A publication Critical patent/GB2358533A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/065—Patch antenna array
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S13/56—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
GB0001458A 2000-01-21 2000-01-21 Antenna; feed; alarm sensor Withdrawn GB2358533A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0001458A GB2358533A (en) 2000-01-21 2000-01-21 Antenna; feed; alarm sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0001458A GB2358533A (en) 2000-01-21 2000-01-21 Antenna; feed; alarm sensor

Publications (2)

Publication Number Publication Date
GB0001458D0 true GB0001458D0 (en) 2000-03-15
GB2358533A GB2358533A (en) 2001-07-25

Family

ID=9884143

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0001458A Withdrawn GB2358533A (en) 2000-01-21 2000-01-21 Antenna; feed; alarm sensor

Country Status (1)

Country Link
GB (1) GB2358533A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220123473A1 (en) * 2020-10-19 2022-04-21 Qualcomm Incorporated Shorted-stub antenna

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1316087A (en) * 1919-09-16 Differential car wheel and axle
GB1312285A (en) * 1970-09-11 1973-04-04 Shorrock Dev High-frequency intruder detector
FR2223705B1 (en) * 1973-04-02 1977-09-02 Lignes Telegraph Telephon
US4103293A (en) * 1975-11-21 1978-07-25 Tri-Century Industries, Inc. Intrusion alarm apparatus
US4195289A (en) * 1975-12-03 1980-03-25 I.E.I. Proprietary Limited Microwave intrusion or movement detectors
US4074214A (en) * 1976-09-20 1978-02-14 Motorola, Inc. Microwave filter
US4053895A (en) * 1976-11-24 1977-10-11 The United States Of America As Represented By The Secretary Of The Air Force Electronically scanned microstrip antenna array
US4241312A (en) * 1979-07-27 1980-12-23 Barnes James R Self-calibrating threshold detector
US4417157A (en) * 1979-09-11 1983-11-22 E-Systems, Inc. Radio frequency switch for coupling an RF source to a load
FR2509533B1 (en) * 1981-05-27 1986-01-03 Labo Electronique Physique DEVICE FOR POLARIZING ACTIVE MICROWAVE ELEMENTS
JPS5827402A (en) * 1981-08-12 1983-02-18 Hitachi Ltd Preamplifying circuit for shf receiver
US4536725A (en) * 1981-11-27 1985-08-20 Licentia Patent-Verwaltungs-G.M.B.H. Stripline filter
FR2519474B1 (en) * 1982-01-05 1985-09-20 Cables De Lyon Geoffroy Delore DEVICE FOR PROTECTING A COAXIAL CABLE AGAINST LOW FREQUENCY AND HIGH POWER INTERFERENCE PULSES
JPS58127401A (en) * 1982-01-22 1983-07-29 Nec Corp Band pass filter
US4700179A (en) * 1982-04-12 1987-10-13 Ici Americas Inc. Crossed beam high frequency anti-theft system
EP0147925A1 (en) * 1983-10-19 1985-07-10 C & K Systems, Inc. Combination infrared microwave intrusion detector
US5028920A (en) * 1984-02-10 1991-07-02 Steven F. Sommers Driver alerting device
US4696191A (en) * 1986-06-24 1987-09-29 The United States Of America As Represented By The United States Department Of Energy Apparatus and method for void/particulate detection
JPS6313503A (en) * 1986-07-04 1988-01-20 Yuniden Kk Microwave filter device
JPS6392104A (en) * 1986-10-07 1988-04-22 Sumitomo Electric Ind Ltd Antenna
JPS6428578A (en) * 1987-07-23 1989-01-31 Weston Corp Radar detector/crime preventor for vehicle
US5015976A (en) * 1988-11-11 1991-05-14 Matsushita Electric Industrial Co., Ltd. Microwave filter
JPH02152302A (en) * 1988-12-02 1990-06-12 Fujitsu Ltd Double wave blocking circuit
GB9027776D0 (en) * 1990-12-21 1991-06-12 Marconi Gec Ltd Patch antenna
US5280256A (en) * 1991-08-23 1994-01-18 The United States Of America As Represented By The Secretary Of The Army Limiting filter
CA2113026A1 (en) * 1993-01-28 1994-07-29 Paul Michael Hoseit Methods and apparatus for intrusion detection having improved immunity to false alarms
GB2277640A (en) * 1993-04-07 1994-11-02 Woldroy Limited Antenna
US6138000A (en) * 1995-08-21 2000-10-24 Philips Electronics North America Corporation Low voltage temperature and Vcc compensated RF mixer
DE19614362C1 (en) * 1996-04-11 1997-07-31 Siemens Ag Antenna, esp. for vehicle theft protection system
JPH09294261A (en) * 1996-04-26 1997-11-11 Sharp Corp Dbs tuner for satellite broadcast receiver
JP3180683B2 (en) * 1996-09-20 2001-06-25 株式会社村田製作所 Surface mount antenna
IL121285A (en) * 1997-07-11 2000-02-29 Visonic Ltd Intrusion detection systems employing active detectors
US6144236A (en) * 1998-02-01 2000-11-07 Bae Systems Aerospace Electronics Inc. Structure and method for super FET mixer having logic-gate generated FET square-wave switching signal

Also Published As

Publication number Publication date
GB2358533A (en) 2001-07-25

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)