Wideband antenna element and array thereof System and method for removing streams of distorted high-frequency electromagnetic radiation US10/487,429 Expired - Fee Related US7088300B2Ĭited By (24) * Cited by examiner, † Cited by third party Publication number
(Cancelled) US10/487,429 Vivaldi antennaĪpplications Claiming Priority (3) Application Numberįamily ID=9920932 Family Applications (1) Application Number Alternatively conductive layers can be formed from other good conductors including gold and gold-plated copper.ġ6. Copper-clad plastics (cuclad), for example PTFE, RT/duroid (having a variety of values, typically ε r=2.2 or 2.94) or Kapton (ε r=3.5), are now conventionally used when ease of manufacture, surface adhesion and price are paramount. Gibson's work has subsequently developed to include high gain Vivaldi antennas constructed on ceramic substrates other than alumina which have high dielectric constants and on substrates having low dielectric constant, for example, plastics. They were constructed by conventional microwave lithographic thin film techniques on substrates having a high dielectric constant, for example, alumina. The original Vivaldi antennas were tapered notch antennas having notches which open in an exponential flare shape. 9 th th European Microwave Conference, UK, June 1979, pp.101-105). The Vivaldi antenna element was proposed by Gibson in 1979, (P.
H01Q13/00- Waveguide horns or mouths Slot antennas Leaky-waveguide antennas Equivalent structures causing radiation along the transmission path of a guided wave.Publication of US20050012672A1 publication Critical patent/US20050012672A1/en Application granted granted Critical Publication of US7088300B2 publication Critical patent/US7088300B2/en Anticipated expiration legal-status Critical Status Expired - Fee Related legal-status Critical Current Links Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority claimed from GB0120615.0 external-priority Application filed by Roke Manor Research Ltd filed Critical Roke Manor Research Ltd Assigned to ROKE MANOR RESEARCH LIMITED reassignment ROKE MANOR RESEARCH LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Original Assignee Roke Manor Research 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 or warranty as to the accuracy of the list.) ( en Inventor James Fisher Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number US10/487,429 Other versions US7088300B2
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