Broadband Slotted Antenna

reportActive / Technical Report | Accesssion Number: AD1150729 | Open PDF

Abstract:

An antenna capable of being joined to an antenna feed perpendicular to a ground plane includes a conductive radiator and a circular wafer surrounding the radiator. The radiator is tubular and has a longitudinal slot along the entire length thereof, parallel to the radiator's axis. The antenna feed can be connected across the slot. The wafer, made either or a conventional high dielectric isotropic material or of a uniaxialdielectric material, is spaced apart from the radiator and has a thickness approximately equal to the width of the slot, a diameter wherein a ratio of a diameter of the radiator to the diameter of the wafer is approximately 35%, and is located at a height above the ground plane equal to approximately 35% of the length of the radiator. The material of the wafer has a dielectric tensor with high polarizability in the axial direction and can be applied to preexisting antennas. This antenna gives enhanced bandwidth over ordinary slotted antennas.

Author(s):
Safford, Susan M. ; ,
Author Organization(s):
Naval Undersea Warfare Center
Funding Organization(s):
Naval Undersea Warfare Center, Newport , RI
Document Type:
Technical Report/Patent Application
Publication Date:
2021 Oct 14
Pagination:
21

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution Code:
A - Approved For Public Release
Distribution Statement: Public Release

RECORD

Collection: TRECMS
Identifying Numbers
Report Number(s):
PAT-APPL-17 501 028
Subject Terms
Communities of Interest:
Advanced Electronics
Descriptor(s):
dielectrics, antenna feeds, dielectric permittivity, frequency, bandwidth, diameters, thickness, composite materials, electromagnetic properties, inventions, electromagnetic radiation, materials, syntactic foams, physical properties, transmission lines, antennas, radio frequency
Keyword(s):
vertically deployable antenna, slotted cylinder antenna, apparatus, radiator, ground plane, conductive cylinder, circular wafer, spacers
Subject Categories:
Navigation, Detection and Countermeasures; Electrotechnology and Fluidics
Creation Date:
2021 Nov 03
Update Date:
2022 Feb 14