Doc.: IEEE 802.15- Submission, Slide 1 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Hitachi Cable

<March, 2004>

<Hisashi Tate>, <Hitachi Cable, Ltd.>Slide 1

doc.: IEEE 802.15-<15-04-0087-00-003a>

Submission

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)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:[[email protected]], [Keisuke Fukuchi], E-Mail:[[email protected]] [Tomoyuki Ogawa], E-Mail: [[email protected]] [Morihiko Ikegaya], E-Mail: [[email protected]] 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: [[email protected]], 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.

<March, 2004>


doc.: IEEE 802.15-<15-04-0087-00-003a>

Submission

Film Type Wideband Antenna for UWB Communication

Hitachi Cable, Ltd.

H. Tate,

M. Ikegaya, T. Ogawa, K. FukuchiHitachi, Ltd.

K. Takei

<March, 2004>


doc.: IEEE 802.15-<15-04-0087-00-003a>

Submission

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

<March, 2004>


doc.: IEEE 802.15-<15-04-0087-00-003a>

Submission

W-LAN Antenna for Laptop PC

Bluetooth

LAN

Introduction

- Suitable for IEEE802.11a/b/g and Bluetooth

- Thin Structure (30mm x 30mm x 0.2mm)

- High Gain & Omni-directional

- Self Ground Plane

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doc.: IEEE 802.15-<15-04-0087-00-003a>

Submission

Return Loss & VSWR

-30

-25

-20

-15

-10

-5

0

2 3 4 5 6 7

Frequency (GHz)

Re

turn

Lo

ss (

dB

)

Introduction

- Micro Coaxial Cable; OD 1.13mm, L=500mm- Time Domain (Gating)

Return Loss VSWR

1

2

3

4

5

2 3 4 5 6 7

Frequency (GHz)V

SW

R

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doc.: IEEE 802.15-<15-04-0087-00-003a>

Submission

Average Gain (Horizontal Plane)

-8.0

-6.0

-4.0

-2.0

0.0

2.0

2.30 2.35 2.40 2.45 2.50 2.55 2.60

Frequency (GHz)

Ave

rag

e G

ain

(d

Bi)

-8

-6

-4

-2

0

2

4.6 4.8 5.0 5.2 5.4 5.6 5.8 6.0 6.2 6.4

Frequency (GHz)A

vera

ge

Ga

in (

dB

i)

Introduction

2GHz Band 5GHz Band

- Micro Coaxial Cable; OD 1.13mm, L=500mm )(

1. PvPh

nGainAve

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doc.: IEEE 802.15-<15-04-0087-00-003a>

Submission

Simulation Technology of Antenna

Single Band Antenna

Dual Band Antenna

Introduction

- Capability for Multi Band - Short developing term - Easy Customizing

Radiator Design

Open Stub

Short Stub

Simulation TechnologyUsing Equivalent Circuit

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doc.: IEEE 802.15-<15-04-0087-00-003a>

Submission

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

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doc.: IEEE 802.15-<15-04-0087-00-003a>

Submission

Basic Design of UWB Antenna

2 3 4 5 6 71.0

1.5

2.0

2.5

3.0

Frequency (GHz)

VS

WR

Image of VSWR

Using Triple Band Technology to cover 3GHz to 6GHz

Equivalent Circuit of Triple Band

Photo of Radiator

Patent Pending

1 2 3

<March, 2004>


doc.: IEEE 802.15-<15-04-0087-00-003a>

Submission

Return Loss & VSWR

-30

-25

-20

-15

-10

-5

0

2 3 4 5 6 7Frequency (GHz)

Ret

urn

Loss

(dB

)

Measurement Result

- Micro Coaxial Cable; OD 1.13mm, L=180mm- Time Domain (Gating)

Normalized Bandwidth = 67% (3GHz/4.5GHz)

Return Loss Property VSWR

1.0

1.5

2.0

2.5

3.0

3.5

4.0

2 3 4 5 6 7

Frequency (GHz)V

SW

R

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doc.: IEEE 802.15-<15-04-0087-00-003a>

Submission

Measurement System of Antenna PropertiesChamber

Horn AntennaSample(Free Space)

Network Analyzer

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doc.: IEEE 802.15-<15-04-0087-00-003a>

Submission

Radiation Pattern at 4.5GHzMeasurement Result

Polarization Vertical Horizontal

Measurement atHorizontal Plane- Micro Coaxial Cable;

OD 1.13mm, L=180mm

10

0

-10

-20

-30

-40

-50

-40

-30

-20

-10

0

10

Gai

n (

dB

i)

90

0

180

270

Measurement Plane

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doc.: IEEE 802.15-<15-04-0087-00-003a>

Submission

Average Gain (Horizontal Plane)

-6-5-4-3-2-101234

2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5

Frequency (GHz)

Ave

rag

e G

ain

(d

Bi)

Measurement Result

- Micro Coaxial Cable; OD 1.13mm, L=180mm )(

1. PvPh

nGainAve

<March, 2004>


doc.: IEEE 802.15-<15-04-0087-00-003a>

Submission

Group DelayMeasurement Result

- Micro Coaxial Cable; OD 1.13mm, L=180mm

0123456789

10

2 3 4 5 6 7

Frequency (GHz)

Gro

up

De

lay

(n

sec)

1.2ns

<March, 2004>


doc.: IEEE 802.15-<15-04-0087-00-003a>

Submission

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 Performance

using real UWB System.– Increasing the Band Width up to 10GHz.

Documents

Doc.: IEEE 802.15- Submission, Slide 1 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Hitachi Cable