U.S. flag
      An official website of the United States government, Department of Justice.
        Here's how you know
      Here's how you know**Official websites use .gov**
            
            A **.gov** website belongs to an official government organization in the United States.
      **Secure .gov websites use HTTPS**
            
            A **lock** (
            A locked padlock
            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites. Menu

      
        close

            
            
                                              About NIJ
        
                    
  
          About NIJ
      
    
          The NIJ Director
          How NIJ Is Organized
          Mission and Guiding Principles
          Research and Development Process
          Strategic Framework
          Assessments of NIJ
          Annual Reports & Reports to Congress
          Staff Directory
          Funding & Awards
        
                    
  
          Funding & Awards
      
    
          Current Funding
          Forthcoming Funding
          Expired Funding
          Awards: Listing of Funded Projects
          Guidance for Applicants and Awardees
          Fellowship & Student Programs
          Travel Scholarships
          NIJ Challenge Program
          Library & Multimedia
        
                    
  
          Library & Multimedia
      
    
          NIJ Journal
          Podcasts
          Publications Listing
          Multimedia Listing
          Rated Practices on CrimeSolutions
          Rated Programs on CrimeSolutions
          Software & Databases
          Datasets
          Patents
          Topics
        
                    
  
          Topics
      
    
          Article Listing
          Corrections
          Courts
          Crime Prevention
          Crimes
          Drugs and Crime
          Equipment and Technology
          Forensic Sciences
          Youth Justice
          Justice System Reform
          Law Enforcement
          Tribal Crime and Justice
          Victims of Crime
          Events
        
                    
  
          Events
      
    
          NIJ 2024 Research Conference
          Scheduled Events
          On-Demand Events
          Research Meetings & Workshops
          NIJ-Hosted Online Training

                            
                                About
          Contact Us
          Subscribe
          Topics A-Z
                  Share
FacebookXLinkedInRedditPinterestEmail Home
                            Library & Multimedia
 Nanoelectromechanical Switches for Reconfigurable Antenna Applications
NCJ Number
              249138

Author(s)
          B. A. Cetiner;
                        B. S. Yildirim;
                        N. Biyikli;
                        Y. Damgaci
Date Published

January 2010
Length
              6 pages
Annotation
              This article reports on the full-wave analyses of a frequency reconfigurable antenna integrated with metallic nanoelectromechanical system (NEMS) switches (length = 3 mm, width = 60 nm).
Abstract
              In order to change the properties of a multifunctional reconfigurable antenna (MRA), the current distribution over the volume of the antenna must be changed.  The geometry of the antenna can be changed by switching on and off various geometrical metallic segments that compose the MRA.  For switching, microelectromechanical system (MEMS), nanoelectromechanical system (NEMS), or semiconductor switches can be used. MEMS and NEMS switches are more advantageous than semiconductor switches due to the monolithic integration capability with antenna segments; however, standard MEMS switches require high actuation voltages (30-80 V) and have low switching speeds (10-20 ms), which may not be appropriate for next-generation cognitive wireless communications applications.  In order to address this issue, the project reported in this article developed a double-arm DC-contact, small-size MEMS switch that is about 10-100 times smaller in lateral dimensions than a standard MEMS switch.  This switch showed actuation voltages lower than 10 V.  The full-wave analyses of a frequency reconfigurable antenna integrated with NEMS switches are reported. This is followed by a description of the full-wave analyses of a frequency reconfigurable antenna integrated with NEMS switches.  This antenna - NEMS integrated penta-band PIFA - can operate over the following five frequency bands: GSM900, GPS1575,GSM1800, PCS1900, and UMTS2100.  7 figures and 10 references
      
  
          Additional Details
Grant Number(s)
        2007-IJ-CX-K025


  
  
        
  Agencies
        NIJ-Sponsored


  
  
        
  Publication Type
        Report (Technical)
                                Report (Study/Research)
                                Report (Grant Sponsored)


  
  
        
  Award
        MEMS Integrated MRA for Use in Multi-functional MRA System
    
  
  
Date Published: January 1, 2010
    
          Downloads
        
                      PDF

Side navigation
  

        

  
  
              NIJ Journal
    
      
            
            
            
      Podcasts
    
      
            
            
            
      Publications Listing
    
      
            
            
            
      Multimedia Listing
    
      
            
            
            
      Rated Practices on CrimeSolutions
    
      
            
            
            
      Rated Programs on CrimeSolutions
    
      
            
            
            
      Software & Databases
    
      
            
            
            
      Datasets
    
      
            
            
            
      PatentsRelated Topics
        
                Antennas
        Emergency communications
        Law Enforcement Communications and Dispatching
        Law enforcement technology
        Mobile digital communications



  
Similar Publications
        
                      Spectroscopic Differentiation and Chromatographic Separation of Regioisomeric Indole Aldehydes: Synthetic Cannabinoids Precursors
                  Nanomanipulation-Coupled to Nanospray Mass Spectrometry Applied to Document and Ink Analysis
                  Comparison of the Novel Direct Analysis in Real Time time-of-Flight Mass Spectrometry (AccuTOF-DART) and Signature Analysis for the Identification of Constituents of Refined Illicit Cocaine
 Top

      National Institute of Justice

        
        
                        About NIJ
                    About NIJ
      
    
                  How NIJ Is Organized
      
    
                  NIJ Director
      
    
                  Research Disclaimer
      
    
                  Funding & Awards
                    Funding & Awards Home
      
    
                  Awards Listing
      
    
                  Current Funding
      
    
                  Guidance for Applicants and Awardees
      
    
                  Resources
                    Events
      
    
                  Podcasts
      
    
                  Publications
      
    
                  Topics
      
    
                  Multimedia
      
    
                  Reuse Policy
      
    
                  Contacts
                    Contact NIJ
      
    
                  Staff Directory
      
    
                  Submit a FOIA Request
      
    
                  File a Civil Rights ComplaintFacebook
          
                      X
          
                      YouTube
  

      810 7th St. NW, Washington, D.C. 20531
      
              Secondary Footer link menu
            Accessibility
              Plain Language
              Privacy Policy
              Legal Policies and Disclaimer
              No FEAR Act
              Freedom of Information Act
              USA.gov
              Justice.gov