skip to main content
US FlagAn official website of the United States government
dot gov icon
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
https lock icon
Secure .gov websites use HTTPS
A lock ( lock ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Explore Research Products in the PAR
It may take a few hours for recently added research products to appear in PAR search results.


  • Home
  • Search Results
  • Page 1 of 1

Search for: All records

Award ID contains: 1725970

Note: When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).
What is a DOI Number?

Some links on this page may take you to non-federal websites. Their policies may differ from this site.

  1. ; ; ; (, IEEE Journal of Radio Frequency Identification)
    null (Ed.)
    Full Text Available 
  2. ; (, 2019 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting)
    The transmission properties of common building materials, such as glass and red brick, are measured at normal incidence over a range of 4-40 GHz in a modular anechoic chamber using a vector network analyzer. Complex permittivity values are estimated using only transmission S-parameters of the material under test and an air reference measurement. Results suggest that the method provides reasonable estimates of complex permittivity at high microwave and lower mm-wave frequencies. 
    more » « less
    Accepted Manuscript Full Text Available
  3. ; ; (, 2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting)
    Transmission of common building materials, such as drywall, cinder block, gypsum board, and glass are characterized over the 4-40 GHz range for normal incidence in a compact anechoic chamber. Results indicate that many interior materials only exhibit modest increase in loss compared to UHF (1 to 4 dB), whereas cinder block can increase loss by as much as 20 to 30 dB. 
    more » « less
    Full Text Available