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Film Type Wideband Antenna for UWB Communication

This tutorial contribution discusses the development and measurement results of a film type wideband antenna for ultra-wideband (UWB) communication. The antenna offers high gain and omni-directional coverage, making it suitable for wireless LAN and Bluetooth applications.

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Film Type Wideband Antenna for UWB Communication

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  1. Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Hitachi Cable ; Film Type Wideband Antenna for UWB Communication] Date Submitted: [03 March, 2004] Source: [Hisashi Tate], E-Mail:[tate.hisashi@hitachi-cable.co.jp], [Keisuke Fukuchi], E-Mail:[fukuchi.keisuke@hitachi-cable.co.jp] [Tomoyuki Ogawa], E-Mail: [ogawa.tomoyuki@hitachi-cable.co.jp] [Morihiko Ikegaya], E-Mail: [ikegaya.morihiko@hitachi-cable.co.jp] Company [Hitachi Cable, Ltd.], Address [880 Isagosawa, Hitachi, Ibaraki, 3191418 Japan] Voice:[+81-294-42-5021], FAX: [+81-294-42-4483] [Ken Takei] , E-Mail: [takei@crl.hitachi.co.jp], Company [Hitachi, Ltd.] Address [1-280 Higashi-koigakubo Kokubunji-shi, Tokyo 1858601, Japan] Voice:[+81-42-323-1111], FAX[+81-42-327-7673] Re: [ ] Abstract: [ Small & High Gain Antenna for UWB with Omni-directional] Purpose: [Tutorial Contribution] Notice: This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15. <Hisashi Tate>, <Hitachi Cable, Ltd.>

  2. Film Type Wideband Antenna for UWB Communication Hitachi Cable, Ltd. H. Tate, M. Ikegaya, T. Ogawa, K. Fukuchi Hitachi, Ltd. K. Takei <Hisashi Tate>, <Hitachi Cable, Ltd.>

  3. Contents • Introduction • Wireless LAN Antenna for Laptop PC • Simulation Technology of Multi Band Antenna • Development of UWB Antenna • Basic Design of UWB Antenna • Measurement Results • Conclusion & Next Step <Hisashi Tate>, <Hitachi Cable, Ltd.>

  4. Introduction W-LAN Antenna for Laptop PC LAN Bluetooth - Suitable for IEEE802.11a/b/g and Bluetooth - Thin Structure (30mm x 30mm x 0.2mm) - High Gain & Omni-directional - Self Ground Plane <Hisashi Tate>, <Hitachi Cable, Ltd.>

  5. Introduction Return Loss & VSWR Return Loss VSWR - Micro Coaxial Cable; OD 1.13mm, L=500mm- Time Domain (Gating) <Hisashi Tate>, <Hitachi Cable, Ltd.>

  6. Introduction Average Gain (Horizontal Plane) 2GHz Band 5GHz Band - Micro Coaxial Cable; OD 1.13mm, L=500mm <Hisashi Tate>, <Hitachi Cable, Ltd.>

  7. Introduction Simulation Technology of Antenna Open Stub Short Stub Single Band Antenna Simulation TechnologyUsing Equivalent Circuit Radiator Design Dual Band Antenna - Capability for Multi Band - Short developing term - Easy Customizing <Hisashi Tate>, <Hitachi Cable, Ltd.>

  8. Target of UWB Antenna • Bandwidth ; 3GHz ~ 6GHz as first generation.-> VSWR < 2.0 • High average gain ; 0dBi (include cable & connector loss) • Omni-directional • Self-Ground Plane • Low Cost & Ready for Mass production <Hisashi Tate>, <Hitachi Cable, Ltd.>

  9. 3.0 2.5 1 2 3 2.0 VSWR Equivalent Circuit of Triple Band 1.5 Patent Pending 1.0 2 3 4 5 6 7 Frequency (GHz) Photo of Radiator Basic Design of UWB Antenna Image of VSWR Using Triple Band Technology to cover 3GHz to 6GHz <Hisashi Tate>, <Hitachi Cable, Ltd.>

  10. Measurement Result Return Loss & VSWR Return Loss Property VSWR Normalized Bandwidth = 67% (3GHz/4.5GHz) - Micro Coaxial Cable; OD 1.13mm, L=180mm- Time Domain (Gating) <Hisashi Tate>, <Hitachi Cable, Ltd.>

  11. Measurement System of Antenna Properties Chamber Horn Antenna Sample(Free Space) Network Analyzer <Hisashi Tate>, <Hitachi Cable, Ltd.>

  12. Polarization Vertical Horizontal 0 10 0 -10 -20 -30 -40 Gain (dBi) 270 90 -50 -40 -30 -20 -10 0 10 180 Measurement Plane Measurement Result Radiation Pattern at 4.5GHz Measurement atHorizontal Plane - Micro Coaxial Cable; OD 1.13mm, L=180mm <Hisashi Tate>, <Hitachi Cable, Ltd.>

  13. Measurement Result Average Gain (Horizontal Plane) - Micro Coaxial Cable; OD 1.13mm, L=180mm <Hisashi Tate>, <Hitachi Cable, Ltd.>

  14. Measurement Result Group Delay - Micro Coaxial Cable; OD 1.13mm, L=180mm <Hisashi Tate>, <Hitachi Cable, Ltd.>

  15. Conclusion & Next Step • Conclusion • Our new antenna covered from 3GHz to 6GHz. • Average gain was around 0dBi.(Coaxial Cable OD1.13mm, L=180mm) • Omni-directional & Self Ground Plane • Group Delay was 1.2ns within this region • Next Step • Measurement of the Performanceusing real UWB System. • Increasing the Band Width up to 10GHz. <Hisashi Tate>, <Hitachi Cable, Ltd.>

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