<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>
<Hisashi Tate>, <Hitachi Cable, Ltd.>Slide 2
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>
<Hisashi Tate>, <Hitachi Cable, Ltd.>Slide 3
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>
<Hisashi Tate>, <Hitachi Cable, Ltd.>Slide 4
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
<March, 2004>
<Hisashi Tate>, <Hitachi Cable, Ltd.>Slide 5
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
<March, 2004>
<Hisashi Tate>, <Hitachi Cable, Ltd.>Slide 6
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
<March, 2004>
<Hisashi Tate>, <Hitachi Cable, Ltd.>Slide 7
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
<March, 2004>
<Hisashi Tate>, <Hitachi Cable, Ltd.>Slide 8
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
<March, 2004>
<Hisashi Tate>, <Hitachi Cable, Ltd.>Slide 9
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>
<Hisashi Tate>, <Hitachi Cable, Ltd.>Slide 10
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
<March, 2004>
<Hisashi Tate>, <Hitachi Cable, Ltd.>Slide 11
doc.: IEEE 802.15-<15-04-0087-00-003a>
Submission
Measurement System of Antenna PropertiesChamber
Horn AntennaSample(Free Space)
Network Analyzer
<March, 2004>
<Hisashi Tate>, <Hitachi Cable, Ltd.>Slide 12
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
<March, 2004>
<Hisashi Tate>, <Hitachi Cable, Ltd.>Slide 13
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>
<Hisashi Tate>, <Hitachi Cable, Ltd.>Slide 14
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>
<Hisashi Tate>, <Hitachi Cable, Ltd.>Slide 15
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.
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