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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [TaiyoYuden/TRDA Small Form Factor Ceramic Antenna for Low Rate alt-PHY ] Date Submitted: [4 January, 2005] - PowerPoint PPT Presentation
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Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 1
doc.: IEEE 15-05-0015-02-004a
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: [TaiyoYuden/TRDA Small Form Factor Ceramic Antenna for Low Rate alt-PHY]Date Submitted: [4 January, 2005]Source: [Hironori Okado(1), Mick Aoki(2)] Company [(1)Taiyo Yuden Co.,Ltd., (2)TRDA Inc.] Address [(1)8-1 Sakaecho Takasaki- shi Gunma 370-8522 Japan, (2)10180 Telesis Court Suite120, San Diego, CA 92121] Voice [(1)+81-27-324-2311, (2)+1-858-554-0755] Fax[(1)+81-27-324-2326, (2)+1-858-455-7578] E-mail [(1)[email protected], (2)[email protected]] Re: []Abstract: [This presentation is introduction to small form factor ceramic antenna for low rate alt-PHY.]
Purpose: [Proposing a RF front-end for standardization by 802.15.4a .]
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.
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 2
doc.: IEEE 15-05-0015-02-004a
Submission
Taiyo Yuden / TRDASmall Form Factor Ceramic Antenna
for Low Rate alt-PHY
Hironori OkadoTaiyo Yuden Co.,Ltd.
Mick AokiTRDA Inc. (Taiyo Yuden R&D Center of America)
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 3
doc.: IEEE 15-05-0015-02-004a
Submission
Contents
• Requirement for RF Front-end• Antenna performance• Filter performance• Conclusion
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 4
doc.: IEEE 15-05-0015-02-004a
Submission
Contents
• Requirement for RF Front-end• Antenna performance• Filter performance• Conclusion
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 5
doc.: IEEE 15-05-0015-02-004a
Submission
Technical requirements for 802.15.4a
• Bit rate : 1kb/s to ≥1Mb/s• Range : 30m - • Interference susceptibility• Low power consumption• Location awareness• Regulatory matters
UWB is well suited to 802.15.4a
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 6
doc.: IEEE 15-05-0015-02-004a
Submission
Structure of 802.15.4a UWB Radio
BPF BEF
RFBB
ChipBalun
MACChip
Antenna
PHY
RF Front End
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 7
doc.: IEEE 15-05-0015-02-004a
Submission
UWB Band and Other Wireless Standards
MHz MHz
2400 4900 5835
MHz
2500
MHz
Cordless phoneMicrowave Oven
802.15.1/3/4802.11b/g
Cordless phone802.11a
Cell phone
f3.1GHz 10.6GHz
UWB UWB
4.9GHz 5.835GHz
1st generation UWB will use below 802.11a band2nd generation UWB needs to consider interference from/to 802.11a
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 8
doc.: IEEE 15-05-0015-02-004a
Submission
Requirements for Antenna
• Non-Directional• Small Form Factor as SD Memory Card• Robust• High Gain
TG4a Technical Requirement (Doc: IEEE 15-04-0198-02-004a)P802.15.4a Alt PHY Selection Criteria (Doc: IEEE 15-04-0232-16-004a)
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 9
doc.: IEEE 15-05-0015-02-004a
Submission
Requirements for Filter
• High Attenuation for Interferences- WLANs (2.4 and 5GHz)- WPANs (802.15.1, 802.15.3, 802.15.4)- Cordless phones (2.4GHz and 5.8GHz)- Cellular phones- Microwave ovens
• Low Insertion Loss• Small Form Factor
TG4a Technical Requirement (Doc: IEEE 15-04-0198-02-004a)P802.15.4a Alt PHY Selection Criteria (Doc: IEEE 15-04-0232-16-004a)
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 10
doc.: IEEE 15-05-0015-02-004a
Submission
Contents
• Requirement for RF Front-end• Antenna performance• Filter performance• Conclusion
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 11
doc.: IEEE 15-05-0015-02-004a
Submission
Definition of Antenna Gain
Total radiation energy for total polarization radiation
Theoretical limit at zero-loss condition
How to increase gain?
+a(dB) Specific Direction Becomes Big
-a(dB) Other Direction Becomes Weak
Ideal Radiation Pattern of Non-Directional Antenna (Isotropic Radiation)
1Isotropicradiation
0dBi1
1
+a (dB)
-a (dB)
The Theoretical Maximum Gain for Non-directional Antenna is 0dBi
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 12
doc.: IEEE 15-05-0015-02-004a
Submission
Developed Antenna
• Ceramic Antenna is Small. - Element Size : 8 x 6 x 1 mm- Ground Size : 20 x 25 mm (Antenna A)
(Size of SD memory : 24 x 32 mm)
• Designed for RF tag application• ICs and components can be mounted on board.
Antenna needs at least one ground plane.
BA C D
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 13
doc.: IEEE 15-05-0015-02-004a
Submission
Measurement System
Measured by multi-probe antenna measurement system
Antenna Efficiency and Radiation Pattern
31pcs Probes
Antenna
Rotate
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 14
doc.: IEEE 15-05-0015-02-004a
Submission
Element Location (1)
1
2
3
4
5
6
3.0 4.0 5.0
Frequency [GHz]
VS
WR
Antenna A
1
2
3
4
5
6
3.0 4.0 5.0
Frequency [GHz]
VS
WR
Edge
Center
A
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 15
doc.: IEEE 15-05-0015-02-004a
Submission
Element Location (2)
1
2
3
4
5
6
3.0 4.0 5.0
Frequency [GHz]
VS
WR
1
2
3
4
5
6
3.0 4.0 5.0
Frequency [GHz]
VS
WR
Edge
Center
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 16
doc.: IEEE 15-05-0015-02-004a
Submission
Influence of Side Ground
1
2
3
4
5
6
3.0 4.0 5.0
Frequency [GHz]
VS
WR
Antenna A
VSWR is degraded by Antenna side ground.
1
2
3
4
5
6
3.0 4.0 5.0
Frequency [GHz]
VS
WR
A
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 17
doc.: IEEE 15-05-0015-02-004a
Submission
VSWR (1)
1
2
3
4
5
6
3.0 4.0 5.0
Frequency [GHz]
VS
WR
1
2
3
4
5
6
3.0 4.0 5.0
Frequency [GHz]
VS
WR
Antenna A
Antenna B
A
B
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 18
doc.: IEEE 15-05-0015-02-004a
Submission
VSWR (2)
1
2
3
4
5
6
3.0 4.0 5.0
Frequency [GHz]
VS
WR
Antenna C
1
2
3
4
5
6
3.0 4.0 5.0
Frequency [GHz]
VS
WR
Antenna D
C
D
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 19
doc.: IEEE 15-05-0015-02-004a
Submission
Efficiency
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
2 3 4 5 6
Frequency [GHz]
Eff
icie
ncy
[dB
]
Antenna A
Antenna B
Antenna C
Antenna D
2.4GHz Band7~8dB Attenuation
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 20
doc.: IEEE 15-05-0015-02-004a
Submission
Radiation Pattern (1)XY-plane @4 GHz
(-X)
(-Y) (+Y)
unit: dBi (+X)YZ-plane @4 GHz
(+Z)
(-Y) (+Y)
unit: dBi (-Z)
ZX-plane @4 GHz (+Z)
(+X) (-X)
unit: dBi (-Z)
-45
-35
-25
-15
-5
5
Ave(t,p)
theta
phi
-45
-35
-25
-15
-5
5
Ave(t,p)
theta
phi
+Y
+X
+Z
phi=0
180
90 270
-45
-35
-25
-15
-5
5
Ave(t,p)
theta
phi
theta=0
180
*phi=18090
*phi=0 90
+Y
+X
+Z
*phi=270 90
theta=0
*phi=9090
180
+Y
+X
+Z
Antenna A
A
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 21
doc.: IEEE 15-05-0015-02-004a
Submission
Radiation Pattern (2)XY-plane @4 GHz
(-X)
(-Y) (+Y)
unit: dBi (+X)YZ-plane @4 GHz
(+Z)
(-Y) (+Y)
unit: dBi (-Z)
ZX-plane @4 GHz (+Z)
(+X) (-X)
unit: dBi (-Z)
-45
-35
-25
-15
-5
5
Ave(t,p)
theta
phi
-45
-35
-25
-15
-5
5
Ave(t,p)
theta
phi
+Y
+X
+Z
phi=0
180
90 270
-45
-35
-25
-15
-5
5
Ave(t,p)
theta
phi
theta=0
180
*phi=18090
*phi=0 90
+Y
+X
+Z
*phi=270 90
theta=0
*phi=9090
180
+Y
+X
+Z
Antenna B
B
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 22
doc.: IEEE 15-05-0015-02-004a
Submission
Radiation Pattern (3)XY-plane @4 GHz
(-X)
(-Y) (+Y)
unit: dBi (+X)YZ-plane @4 GHz
(+Z)
(-Y) (+Y)
unit: dBi (-Z)
ZX-plane @4 GHz (+Z)
(+X) (-X)
unit: dBi (-Z)
-45
-35
-25
-15
-5
5
Ave(t,p)
theta
phi
-45
-35
-25
-15
-5
5
Ave(t,p)
theta
phi
+Y
+X
+Z
phi=0
180
90 270
-45
-35
-25
-15
-5
5
Ave(t,p)
theta
phi
theta=0
180
*phi=18090
*phi=0 90
+Y
+X
+Z
*phi=270 90
theta=0
*phi=9090
180
+Y
+X
+Z
Antenna C
C
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 23
doc.: IEEE 15-05-0015-02-004a
Submission
Radiation Pattern (4)XY-plane @4 GHz
(-X)
(-Y) (+Y)
unit: dBi (+X)YZ-plane @4 GHz
(+Z)
(-Y) (+Y)
unit: dBi (-Z)
ZX-plane @4 GHz (+Z)
(+X) (-X)
unit: dBi (-Z)
-45
-35
-25
-15
-5
5
Ave(t,p)
theta
phi
-45
-35
-25
-15
-5
5
Ave(t,p)
theta
phi
+Y
+X
+Z
phi=0
180
90 270
-45
-35
-25
-15
-5
5
Ave(t,p)
theta
phi
theta=0
180
*phi=18090
*phi=0 90
+Y
+X
+Z
*phi=270 90
theta=0
*phi=9090
180
+Y
+X
+Z
Antenna D
D
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 24
doc.: IEEE 15-05-0015-02-004a
Submission
Group Delay
Antenna Group Delay
-5
-4
-3
-2
-1
0
1
2
3
4
5
2 4 6 8 10 12
Frequency[GHz]
Gro
up D
elay
[nse
c]
Sample : Antenna A
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 25
doc.: IEEE 15-05-0015-02-004a
Submission
Impulse Response (1)
Transmitted Signal at input of Double Ridge Horn Antenna500ps/Div 10mV/Div
1 ftImpulse Generator Oscilloscope
UWB AntennaDouble Ridge Horn Antenna
Anechoic Chamber
ATT
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 26
doc.: IEEE 15-05-0015-02-004a
Submission
Impulse Response (2)
Received Signal by Antenna A500ps/Div 10mV/Div
Received Signal by Antenna B500ps/Div 10mV/Div
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 27
doc.: IEEE 15-05-0015-02-004a
Submission
Impulse Response (3)
Received Signal by Antenna C500ps/Div 10mV/Div
Received Signal by Antenna D500ps/Div 10mV/Div
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 28
doc.: IEEE 15-05-0015-02-004a
Submission
Contents
• Requirement for RF Front-end• Antenna performance• Filter performance• Conclusion
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 29
doc.: IEEE 15-05-0015-02-004a
Submission
Developed Filter
• Ceramic Filter is Small and Robust • Band Pass Filter for 1st generation• Band Elimination Filter against 5GHz band• Performance
-Low Insertion loss
-High Attenuation
• Chips need Balun
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 30
doc.: IEEE 15-05-0015-02-004a
Submission
Band Pass Filter (BPF)
Frequency Responce
-60
-50
-40
-30
-20
-10
0
2 3 4 5 6 7 8Frequency (GHz)
S11 /
S21 (
dB
)
S11S21
Dimension : 3.2 x 1.6 x 1.15 mm
For 1st generation chip set
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 31
doc.: IEEE 15-05-0015-02-004a
Submission
Band Elimination Filter (BEF)
Frequency Response
-60
-50
-40
-30
-20
-10
0
2 3 4 5 6 7 8Frequency (GHz)
S11 /
S21 (
dB
)
S11S21
Dimension : 6.3 x 3.0 x 1.1 mm
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 32
doc.: IEEE 15-05-0015-02-004a
Submission
BalunFrequency Responce
-40
-30
-20
-10
0
2 3 4 5 6Frequency (GHz)
(dB
)
ReturnLossInsertionLoss
Dimension : 2.0 x 1.25 x 0.9 mm
Frequency Response
-40
-30
-20
-10
0
2 3 4 5 6 7 8Frequency (GHz)
(dB
)
Return LossInsertion Loss
Dimension : 3.2 x 2.5 x 0.85 mm
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 33
doc.: IEEE 15-05-0015-02-004a
Submission
Contents
• Requirement for RF Front-end• Antenna performance• Filter performance• Conclusion
Jan 2005
Mick Aoki, Taiyo Yuden/TRDASlide 34
doc.: IEEE 15-05-0015-02-004a
Submission
Conclusion
• Proposed UWB Antenna meets requirements. - Non-directional, Small, Robust, High Gain- Flat Group Delay, Good Impulse Response
• The Antenna Element can be used in the corner of RF tag or module. ICs and components can be mounted on board. There is less wasted space.
• Proposed Filter has enough performance to avoid interference.
• Accelerate Time to Market. The Antenna and Filters are Available Now.