Scheduled System Maintenance on May 29th, 2015:
IEEE Xplore will be upgraded between 11:00 AM and 10:00 PM EDT. During this time there may be intermittent impact on performance. We apologize for any inconvenience.
By Topic

Adaptable and Tunable Antenna Technology for Handsets and Mobile Computing Products, 2009 IET Seminar on

Date 22-22 Oct. 2009

Filter Results

Displaying Results 1 - 10 of 10
  • Reconfigurable antennas for wideband wireless systems

    Publication Year: 2009 , Page(s): 1 - 31
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (339 KB)  

    Handset antenna • narrow and wide band tuning over 400 MHz to −3 GHz • 2 ports to increase degrees of freedom Vivaldi antenna • reconfiguration between wide and narrow modes • demonstrated for wide and 3 narrow bands • reduction in pattern control as bands narrow View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Dr James Kelly biography

    Publication Year: 2009 , Page(s): 1
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (56 KB)  

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Tunable antennas and band gap surfaces

    Publication Year: 2009 , Page(s): 1 - 34
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (1370 KB)  

    • LC tunable antennas at low frequencies are lossy • Reconfigurable antennas need matching circuits • MEMs switches — optimise bias configuration • Tuning bandwidths look promising — DVB-H achieved • Variety of different tuning mechanisms • A universal matching circuit is a goal • Reconfigurable antennas, FSS and EBGs are feasible • Tuning bandwidths look promising • Variety of different tuning mechanisms View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Professor Richard Langley biography

    Publication Year: 2009 , Page(s): 1
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (55 KB)  

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Tunable high lsolation directional coupler based circulator

    Publication Year: 2009 , Page(s): 1 - 21
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (473 KB)  

    • Need for adaptive non-ferrite based circulators in agile/cognitive radio systems • Use of four port tuner for quasi-circulator realisation • Physical realisation issues and experimental results obtained View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Professor Vincent Fusco biography

    Publication Year: 2009 , Page(s): 1
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (60 KB)  

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Questions concerning the use of MIMO for WiMAX

    Publication Year: 2009 , Page(s): 1 - 33
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (2613 KB)  

    • Balanced dielectric technology can reduce size and improve capacity/range of small mobile WiMAX terminals. • Practical to invoke pattern/polarisation diversity with small distance between antennas. • Chu-Harrington Law constrains make it difficult to achieve full “Clearwire” bandwidth with this method. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Dr Ivor Morrow biography

    Publication Year: 2009 , Page(s): 1
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (50 KB)  

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Integrated tuning technology for antennas and radio front ends

    Publication Year: 2009 , Page(s): 1 - 34
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (9870 KB)  

    □ Large and Compelling Opportunity S Additional Modes and Bands (LIE, wiMax, …) ✓ Significant BOM and Footprint Reduction (antennas / switches / filters / amplifiers) ✓ Substantial Platform RF Optimization Cycle Reduction (Weeks reduced to hours) ✓ Performance Improvements (Transmit Efficiency, Receive Sensitivity) □ Differentiated and Enabling Product Technology ✓ CMOS/MEMS integration, Standard Fabless Flows (CMOS cost, scale, yield) ✓ High RF Performance (Ratio, Q, Isolation, Linearity) ✓ CMOS blocks Developed (≤ 100uA w/ 3V supply, SPI interface, ESD protection) ✓ Proven wafer-level sealing (Low Cost, Easy Assembly, Reproducibility, Reliability) ✓ Durable and Reliable (Temperature Stability, Cycling, Environmental robustness) ✓ Applicable to wide range of applications (roadmap leading to full front-end) □ Strong Initial Market Traction ✓ Multiple Tier 1 Handset OEM Development Engagements ✓ Tier 1 Network Operator Investment and Development Engagement ✓ Tier 1 Front-End Module Development Engagement □ Transitioning from Technology Development to Products and Revenue ✓ Initial products developed and tested ✓ 100's delivered for handset integration, testing and software development ✓ Integrated MEMS-CMOS process frozen at Jazz Semiconductor ✓ Application/Product Roadmap using baseline technology — Antennas, PAs, Duplexers … ✓ Tuner product in qualification! View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Dr Art Morris biography

    Publication Year: 2009 , Page(s): 1
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (51 KB)  

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.