Low Cost, Broadband Tunable Ferroelectric Filters for JTRS Cluster 5 Applications

Abstract

Tunable ferroelectric ceramic capacitors have shown great promise in reducing the size, weight, and power (SWAP) of traditional varactor-based devices. Ferroelectric devices fabricated from Barium Strontium Titanate (BST) have been demonstrated in the laboratory and are just now becoming available for commercial narrowband applications. This paper presents some of the tradeoffs in designing a small form factor (SFF), easily manufacturable, broadband tunable filter utilizing high volume, low-cost BST devices. Development status for filters that cover the 225 MHz to 2.7 GHz frequency range with superior narrowband performance, low inband insertion loss, and high out-of-band rejection that is directly applicable to the stringent requirements of Joint Tactical Radio System (JTRS) Cluster 5 Software Defined Radio (SDR) is also presented. These Manufacturing Readiness Level (MRL) 4 filters currently provide a 50% reduction in size over traditional approaches, and future short-term plans promise further reductions in unit production cost (UPC) and SWAP.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2004
Accession Number
ADA433467

Entities

People

  • Lisa Rulli
  • Steven Sarraf

Organizations

  • SRI International

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Bandwidth
  • Broadband
  • Capacitors
  • Circuit Boards
  • Communication Systems
  • Failure Mode And Effect Analysis
  • Frequency
  • Frequency Bands
  • Insertion Loss
  • Manufacturing
  • Military Communications
  • Mobile Phones
  • Production
  • Radio Equipment
  • Reliability
  • Semiconductors
  • Software Defined Radio

Readers

  • Integrated Circuit Design and Technology.
  • Microwave Engineering.
  • Phased Array Antenna Design.