Part No. M620720
ISM 868 & 915 MHz Embedded Ceramic Antenna
868 MHz; 915 MHz
Supports: Tracking, Smart Home, Agriculture, Automotive, Healthcare, Digital Signage, Wearables, Industrial Devices
DATASHEET
Part No. M620720
Product: ISM 868 & 915
MHz Embedded
Ceramic
11/15/2018 Proprietary www.ethertronics.com
Electrical Specifications
Typical performance on 40 x 100 mm PCB
Mechanical Specifications & Ordering Part Number
KEY BENEFITS
Stay-in-Tune
IMD antenna technology
provides superior RF field
containment, resulting in
less interaction with
surrounding components.
Quicker Time-to-Market
By optimizing antenna size,
performance and
emissions, customer and
regulatory specifications
are more easily met.
Reliability
Products are the latest
RoHS version compliant.
ISM 868 & 915 MHz
Embedded Ceramic Antenna
868 MHz; 915 MHz
•Embedded
design
•Cellular,
Headsets,
Tablets
•Gateway,
Access
Point
•Handheld
•Telematics
•Tracking
•Healthcare
•M2M,
Industrial
devices
•Smart Grid
•OBD-II
APPLICATIONS
Ordering Part Number
M620720
Size (mm)
6.00 x 2.00 x 1.08
Mounting
SMT
Weight (grams)
0.1
Packaging
Tape & Reel,
M620720 –1,000 pieces per reel
Demo Board
M620720-01
Ethertronics’ series of Ceramic Isolated Magnetic Dipole™ (IMD) antennas
deliver on the key needs of device designers for higher functionality and
performance in smaller/thinner designs. These innovative antennas provide
compelling advantages for 868 and 915 MHz ISM enabled handheld
devices, media players and other mobile devices.
Real-World Performance and Implementation
Ceramic antennas may look alike on the outside, but the important
difference is inside. Other antennas may contain simple PIFA or monopole
designs that interact with their surroundings, complicating layout
or changing performance with use position. Ethertronics’ antennas utilize
patented IMD technology to deliver a unique size and performance
combination.
Frequency
863 -870 MHz 902 –928 MHz
Peak Gain
0.30 dBi 0.75 dBi
Average
Efficiency
58% 60%
VSWR Match
1.6:1 max 2.5:1 max
Feed Point
Impedance
50 ohms
Polarization
Linear
Power
Handling
0.5 Watt CW
© 2018 Ethertronics tel +(1) 858.550.3820 | fax +(1) 858.550.3821
email: eth.info@avx.com
5501 Oberlin Drive, Suite 100 San Diego, CA 92121 - USA
Antenna Dimensions
Typical antenna dimensions (mm)
Top View
Bottom View
Pin #1
Pin
Description
1
Feed
2
Dummy
3
Ground
Part Number A (mm) B (mm) C (mm)
M620720 6.00 ± 0.2 2.00 ± 0.2 1.08 ± 0.1
Height
DATASHEET | Part No. M620720
ISM 868 & 915 MHz Embedded Ceramic Antenna Specifications
Ethertronics produces a wide variety of standard and custom antennas to meet user needs.
Pin #2
B
C
A
Pin #3
© 2018 Ethertronics tel +(1) 858.550.3820 | fax +(1) 858.550.3821
email: eth.info@avx.com
5501 Oberlin Drive, Suite 100 San Diego, CA 92121 - USA
VSWR, Efficiency Plots (Tuned @ 868 MHz)
Typical performance on 40 x 100 mm PCB
VSWR Efficiency
Antenna Radiation Patterns
Typical performance on 40 x 100 mm PCB
Measured @ 868 MHz
Frequency (MHz) Frequency (MHz)
Efficiency (%)
VSWR
DATASHEET | Part No. M620720
ISM 868 & 915 MHz Embedded Ceramic Antenna Specifications
Ethertronics produces a wide variety of standard and custom antennas to meet user needs.
863-870 MHz
Component
Value
Tolerance
P1 5.0 pF
±0.05 pF
P2 82 pF ± 5%
Y
X
Y
Z
X
Z
© 2018 Ethertronics tel +(1) 858.550.3820 | fax +(1) 858.550.3821
email: eth.info@avx.com
5501 Oberlin Drive, Suite 100 San Diego, CA 92121 - USA
VSWR, Efficiency Plots (Tuned @ 915 MHz)
Typical performance on 40 x 100 mm PCB
VSWR Efficiency
Antenna Radiation Patterns
Typical performance on 40 x 100 mm PCB
Measured @ 915 MHz
Frequency (MHz) Frequency (MHz)
Efficiency (%)
VSWR
Y
X
Y
Z
X
Z
DATASHEET | Part No. M620720
ISM 868 & 915 MHz Embedded Ceramic Antenna Specifications
Ethertronics produces a wide variety of standard and custom antennas to meet user needs.
902-928 MHz
Component
Value
Tolerance
P1 3.6 pF
±0.05 pF
P2 82 pF ± 5%
© 2018 Ethertronics tel +(1) 858.550.3820 | fax +(1) 858.550.3821
email: eth.info@avx.com
5501 Oberlin Drive, Suite 100 San Diego, CA 92121 - USA
Antenna
Outline
Antenna Layout
Typical layout dimensions (mm)
P2 Antenna
Outline
Pin #1
Pin #2
Pin#
Description
1
Feed
2
Dummy
3
Ground
Pin Descriptions
Matching Network (Demo Board)
863-870 MHz 902-928 MHz
Component
Value
Value Tolerance
P1 5.0 pF
3.6 pF ±0.05 pF
P2 82 pF ± 5%
P1
50Ω
Transmission
line
DATASHEET | Part No. M620720
Pin #3
ISM 868 & 915 MHz Embedded Ceramic Antenna Specifications
Ethertronics produces a wide variety of standard and custom antennas to meet user needs.
*Actual matching values depend on customer design
50ohm
P2
P1
•Additional VIAS: Diam. 0.2mm to be placed around antenna,
(no vias on transmission lines).
•Via holes must be covered by solder mask
© 2018 Ethertronics tel +(1) 858.550.3820 | fax +(1) 858.550.3821
email: eth.info@avx.com
5501 Oberlin Drive, Suite 100 San Diego, CA 92121 - USA
Antenna Layout Tips (General reference)
Important, layout guidelines for correct operation of Ethertronics Ceramic Antennas. Please read guidelines below
before laying out the antenna in a device. Figure 1 shows the typical antenna layout. Figure 2 shows
Ethertronics’ antenna layout.
Shorting pin Feedpin
Antennatuning loop:
•Theantenna tuningloop is formedby the
PCBlayout.
•The feed pin and shorting pin are
combined because it requiresveryclose
proximity to achievemore band- width.
Figure 2
Ethertronics Antenna Layout
(Required)
Figure 1
Typical Antenna Layout
Shorting pin and feed pin are shared in
Ethertronics ceramic antennas
Other Ethertronics
DATASHEET | Part No. M620720
ISM 868 & 915 MHz Embedded Ceramic Antenna Specifications
Ethertronics produces a wide variety of standard and custom antennas to meet user needs.
© 2018 Ethertronics tel +(1) 858.550.3820 | fax +(1) 858.550.3821
email: eth.info@avx.com
5501 Oberlin Drive, Suite 100 San Diego, CA 92121 - USA
Antenna Demo Board
Typical layout dimensions (mm)
Part Number A (mm) B (mm) C (mm)
M620720-01 100.0 40.0 50.0
DATASHEET | Part No. M620720
A
B
C
ISM 868 & 915 MHz Embedded Ceramic Antenna Specifications
Ethertronics produces a wide variety of standard and custom antennas to meet user needs.