GB1293737A - Improvements in or relating to electromagnetic energy radiating apparatus - Google Patents

Improvements in or relating to electromagnetic energy radiating apparatus

Info

Publication number
GB1293737A
GB1293737A GB07369/71A GB1736971A GB1293737A GB 1293737 A GB1293737 A GB 1293737A GB 07369/71 A GB07369/71 A GB 07369/71A GB 1736971 A GB1736971 A GB 1736971A GB 1293737 A GB1293737 A GB 1293737A
Authority
GB
United Kingdom
Prior art keywords
line
switch
resistors
transmission line
balanced
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.)
Expired
Application number
GB07369/71A
Inventor
Gerald Fred Ross
David Lamensdorf
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.)
Sperry Corp
Original Assignee
Sperry Rand 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 Sperry Rand Corp filed Critical Sperry Rand Corp
Publication of GB1293737A publication Critical patent/GB1293737A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
    • 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
    • H01Q9/005—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements for radiating non-sinusoidal waves

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Transmitters (AREA)

Abstract

1293737 Aerials; generating oscillations SPERRY RAND CORP 27 May 1971 [15 June 1970] 17369/71 Headings H3B and H4A A high frequency impulse is directionally radiated from a balanced horn antenna 3, Fig. 4, forming part of and terminating a balanced strip transmission line 14, 14a, each time the other end of the line is bridged by a switch 23 through resistors r/2, the line being charged through resistors R/2 from a voltage source 21. The switch may be an electromagneticallycontrolled mercury-wetted reed which is operated from a pulse generator 24 or modulated pulse source. Closure of the switch causes a negative voltage wave to travel along the line to the radiating antenna, the reflected wave being absorbed by resistors r/2 which together equal the characteristic impedance of the line. The transmission line is shown in Fig. 1 and comprises parallel strips 4, 4a, and a matched balanced horn portion 3 consisting of diverging planar members 2, 2a terminated by either flat or curved ends 8, 8a. The members are either spaced by dielectric spacers 10, 10a or an air formed dielectric filling may be used. In a modification, Fig. 9, the parallel portion of the transmission line is screened by a conductive sleeve 30 held at mid-potential by a capacitor voltage divider 33, 34, 33a, 34a. In a further modification, Fig. 14, the switch 23 is replaced by one or more avalanche transistors 50, 50a, the arrangement being then free-running.
GB07369/71A 1970-06-15 1971-05-27 Improvements in or relating to electromagnetic energy radiating apparatus Expired GB1293737A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4607970A 1970-06-15 1970-06-15

Publications (1)

Publication Number Publication Date
GB1293737A true GB1293737A (en) 1972-10-25

Family

ID=21941488

Family Applications (1)

Application Number Title Priority Date Filing Date
GB07369/71A Expired GB1293737A (en) 1970-06-15 1971-05-27 Improvements in or relating to electromagnetic energy radiating apparatus

Country Status (5)

Country Link
US (1) US3659203A (en)
JP (1) JPS5121538B1 (en)
DE (1) DE2129700A1 (en)
FR (1) FR2095256B1 (en)
GB (1) GB1293737A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2265759A (en) * 1992-04-04 1993-10-06 Marconi Gec Ltd Horn antenna
EP1661201A2 (en) * 2003-08-04 2006-05-31 Harris Corporation Phased array antenna absorber and associated methods

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662316A (en) * 1971-03-12 1972-05-09 Sperry Rand Corp Short base-band pulse receiver
US3750025A (en) * 1971-04-26 1973-07-31 Sperry Rand Corp Energy amplifying selector gate for base-band signals
US3848914A (en) * 1971-12-15 1974-11-19 Sperry Rand Corp Motor shiftable shock absorbing bumper
US3794996A (en) * 1972-07-12 1974-02-26 Sperry Rand Corp Stable base-band superregenerative selective receiver
US3858205A (en) * 1972-10-06 1974-12-31 Sperry Rand Corp Base-band precollision sensor with time domain gating for preventing false responses
US3792358A (en) * 1972-12-15 1974-02-12 Us Air Force Single cycle transmitter
DE2921856C2 (en) * 1979-05-30 1985-09-12 Siemens AG, 1000 Berlin und 8000 München Directional antenna consisting of two strip conductors forming a double radiating line and a group antenna using several such directional antennas
US4698633A (en) * 1982-05-19 1987-10-06 Sperry Corporation Antennas for wide bandwidth signals
US6606051B1 (en) 1984-12-03 2003-08-12 Time Domain Corporation Pulse-responsive dipole antenna
US20030016157A1 (en) * 1984-12-03 2003-01-23 Fullerton Larry W. Time domain radio transmission system
USRE41479E1 (en) 1984-12-03 2010-08-10 Time Domain Corporation Time domain radio transmission system
USRE39759E1 (en) 1984-12-03 2007-08-07 Time Domain Corporation Time domain radio transmission system
US5952956A (en) * 1984-12-03 1999-09-14 Time Domain Corporation Time domain radio transmission system
US6882301B2 (en) 1986-06-03 2005-04-19 Time Domain Corporation Time domain radio transmission system
US5150067A (en) * 1990-04-16 1992-09-22 Mcmillan Michael R Electromagnetic pulse generator using an electron beam produced with an electron multiplier
GB9410274D0 (en) * 1994-05-20 1994-07-13 Secr Defence Ultrawideband antenna
US5832035A (en) 1994-09-20 1998-11-03 Time Domain Corporation Fast locking mechanism for channelized ultrawide-band communications
US7321611B2 (en) 1994-09-20 2008-01-22 Alereen, Inc. Method and transceiver for full duplex communication of ultra wideband signals
US5677927A (en) * 1994-09-20 1997-10-14 Pulson Communications Corporation Ultrawide-band communication system and method
US7539237B2 (en) * 1996-12-06 2009-05-26 Alereon, Inc. Fast locking mechanism for channelized ultrawide-band communications
US6700939B1 (en) * 1997-12-12 2004-03-02 Xtremespectrum, Inc. Ultra wide bandwidth spread-spectrum communications system
US7346120B2 (en) 1998-12-11 2008-03-18 Freescale Semiconductor Inc. Method and system for performing distance measuring and direction finding using ultrawide bandwidth transmissions
US6351246B1 (en) 1999-05-03 2002-02-26 Xtremespectrum, Inc. Planar ultra wide band antenna with integrated electronics
AU2001282867A1 (en) 2000-08-07 2002-02-18 Xtremespectrum, Inc. Electrically small planar uwb antenna apparatus and system thereof
US20100109840A1 (en) * 2008-10-31 2010-05-06 Robert Schilling Radio Frequency Identification Read Antenna
KR101252604B1 (en) 2012-03-26 2013-04-09 국방과학연구소 A spark gap switch for high power ultra-wideband electromagnetic field radiation for stabilized discharge
DE102014017621B4 (en) * 2014-05-22 2016-12-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Electronically switchable reflector element for parallel plate or surface waves and its application

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2422176A (en) * 1941-04-30 1947-06-17 Submarine Signal Co Spark gap oscillation generator with radiator
GB1050626A (en) * 1963-03-20
US3405287A (en) * 1965-11-02 1968-10-08 Bell Telephone Labor Inc Avalanche transistor pulse generator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2265759A (en) * 1992-04-04 1993-10-06 Marconi Gec Ltd Horn antenna
GB2265759B (en) * 1992-04-04 1995-09-27 Marconi Gec Ltd Antenna
EP1661201A2 (en) * 2003-08-04 2006-05-31 Harris Corporation Phased array antenna absorber and associated methods
EP1661201A4 (en) * 2003-08-04 2006-09-13 Harris Corp Phased array antenna absorber and associated methods

Also Published As

Publication number Publication date
US3659203A (en) 1972-04-25
JPS5121538B1 (en) 1976-07-03
DE2129700A1 (en) 1971-12-16
FR2095256A1 (en) 1972-02-11
FR2095256B1 (en) 1976-09-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees