Naval Postgraduate School
Dudley Knox Library
NPS Dudley Knox Library
View Item 
  •   Calhoun Home
  • Faculty and Researchers
  • Faculty and Researchers' Publications
  • View Item
  •   Calhoun Home
  • Faculty and Researchers
  • Faculty and Researchers' Publications
  • View Item
  • How to search in Calhoun
  • My Accounts
  • Ask a Librarian
JavaScript is disabled for your browser. Some features of this site may not work without it.

Browse

All of CalhounCollectionsThis Collection

My Account

LoginRegister

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

Ultra-wideband conformal helmet antenna

Microwave Conference, 2000 Asia-Pacific

Thumbnail
Download
IconLebaric_Ultra-Wideband.pdf (247.3Kb)
Download Record
Download to EndNote/RefMan (RIS)
Download to BibTex
Author
Lebaric, J.
Ah-Tuan Tan
Date
2000
Metadata
Show full item record
Abstract
This paper presents the development of an ultra-wideband (300 to 3000 MHz), vertically polarized, nearly omni-directional (in azimuth) communications antenna integrated into the camouflage cover of a standard military-issue Kevlar helmet. The Helmet Camouflage Cover Antenna (referred to as the “helmet antenna”) is one of three antennas (with the combined frequency coverage from 2 to 2000 MHz) based on the antenna COMbat Wear INtegration (COMWIN) concept developed at the Naval Postgraduate School (NPS) for the man-portable implementation of the new Joint Tactical Radio System (JTRS). The results of computer simulations and prototype measurements for the helmet antenna are presented. The helmet antenna is conformal to the shape of the Kevlar ballistic helmet. It is constructed of conducting cloth (polyester interwoven with nickel/copper fibers) and attached as a liner to the helmet's camouflage cover. The helmet antenna is therefore visually undetectable, except for the connector in the back of the helmet. Several variants of the helmet antenna have been designed and simulated at NPS using the High Frequency Structure Simulator (HFSS) software, with different trade-offs between the low frequency cut-off and the maximum VSWR “ripple” within the operational band. Two prototypes, Mk I and Mk II, have been built and measured at the NPS. Measurements of the input impedance/VSWR as a function of frequency for the Mk II prototype show performance exceeding the HFSS computer model predictions. The VSWR is less than 3:1 for all frequencies between 300 and 3000 MHz. The presence of an operator wearing the helmet does not affect the VSWR significantly
Description
The article of record may be found at http://dx.doi.org/10.1.1109/APMC.2000.926116
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
URI
http://hdl.handle.net/10945/41307
Collections
  • Faculty and Researchers' Publications

Related items

Showing items related by title, author, creator and subject.

  • Thumbnail

    Ultra-wideband RF helmet antenna 

    Lebaric, Jovan; Tan, Ah-Tuan (2000);
    This paper addresses the development of an ultra-wideband, vertically polarized communications antenna integrated into the camouflage cover of a standard military-issue Kevlar helmet. The Helmet Camouflage Cover Antenna ...
  • Thumbnail

    Integrated Man-Portable Wearable Antenna System 

    Adams, Richard C.; O'Neil, Robert J.; Lebaric, Jovan E.; Emo, Todd R. (The United States of America as represented by the Secretary of the Navy, Washington, DC (US), 2006-02-21);
    A man-portable wearable antenna system to be worn by a wearer. The wearable antenna system comprises a helmet antenna, a vest antenna worn around the torso, a body antenna worn along the entire body, and a means for ...
  • Thumbnail

    Experimental Verification of Attitude Control Techniques for Slew Maneuvers of Flexible Spacecraft 

    Hailey, J.; Sortun, C.; Agrawal, B.N. (1992);
    This paper presents experimental verification of modern and classical control laws on flexible spacecraft structures. The Flexible Spacecraft Simulator at the Naval Postgraduate School is designed to test a variety of ...
NPS Dudley Knox LibraryDUDLEY KNOX LIBRARY
Feedback

411 Dyer Rd. Bldg. 339
Monterey, CA 93943
circdesk@nps.edu
(831) 656-2947
DSN 756-2947

    Federal Depository Library      


Start Your Research

Research Guides
Academic Writing
Ask a Librarian
Copyright at NPS
Graduate Writing Center
How to Cite
Library Liaisons
Research Tools
Thesis Processing Office

Find & Download

Databases List
Articles, Books & More
NPS Theses
NPS Faculty Publications: Calhoun
Journal Titles
Course Reserves

Use the Library

My Accounts
Request Article or Book
Borrow, Renew, Return
Tech Help
Remote Access
Workshops & Tours

For Faculty & Researchers
For International Students
For Alumni

Print, Copy, Scan, Fax
Rooms & Study Spaces
Floor Map
Computers & Software
Adapters, Lockers & More

Collections

NPS Archive: Calhoun
Restricted Resources
Special Collections & Archives
Federal Depository
Homeland Security Digital Library

About

Hours
Library Staff
About Us
Special Exhibits
Policies
Our Affiliates
Visit Us

NPS-Licensed Resources—Terms & Conditions
Copyright Notice

Naval Postgraduate School

Naval Postgraduate School
1 University Circle, Monterey, CA 93943
Driving Directions | Campus Map

This is an official U.S. Navy Website |  Please read our Privacy Policy Notice  |  FOIA |  Section 508 |  No FEAR Act |  Whistleblower Protection |  Copyright and Accessibility |  Contact Webmaster

Export search results

The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

A logged-in user can export up to 15000 items. If you're not logged in, you can export no more than 500 items.

To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.