Datasheet

PRODUCT SPECIFICATION
REVISION:
ECR/ECN INFORMATION:
TITLE:
824~2170MHz Flexible Antenna Side-Fed
Product Specification
SHEET No.
A
EC No:
5 of 8
DATE:
DOCUMENT NUMBER:
CREATED / REVISED BY:
CHECKED BY:
APPROVED BY:
PS-2125700100
Kang Cheng 2019/06/13
Cooper Zhou 2019/06/13
Stary Song 2019/06/13
TEMPLATE FILENAME: PRODUCT_SPEC[SIZE_A4](V.1).DOC
5.0 ANTENNA SPECIFICATION.
All measurements are done of the antenna mounted on a PC/ABS material block of 2mm
thickness with VNA Agilent E5071C and Over-The-Air (OTA) chamber. All measurements in this
document are done with the part no.2125700150 for different cable length.
5.1 ELECTRICAL REQUIREMENT
5.1.1 ELECTRICAL REQUIREMENTS FOR CABLE LENGHTH 100mm
P/N
2125700100
Frequency Range
824-960MHz
1710-2170MHz
Peak Gain (Max)
-0.45dBi
1.76dBi
Average Total efficiency
>25%
>50%
Return Loss
< -4 dB
< -3 dB
5.1.2 ELECTRICAL REQUIREMENTS FOR CABLE LENGHTH 150mm
P/N
2125700150
Frequency Range
824-960MHz
1710-2170MHz
Peak Gain (Max)
-0.45dBi
1.76dBi
Average Total efficiency
>30%
>60%
Return Loss
< -5 dB
< -5 dB
5.1.3 ELECTRICAL REQUIREMENTS FOR CABLE LENGHTH 200mm
P/N
2125700200
Frequency Range
824-960MHz
1710-2170MHz
Peak Gain (Max)
-0.45dBi
1.76dBi
Average Total efficiency
>35%
>50%
Return Loss
< -5 dB
< -5 dB
Note that the above antenna performance is measured with just the antenna mounted on a
PC/ABS block to similar a free-space condition. When implement into the system, the frequency
resonant might be off-tune due to the loading of surrounding components especially metal
plane. This off-tune can be compensated through matching. Although module manufacturers
specify a peak gain limit, it is based on free-space conditions. The peak gain will be degraded
by 1 to 2dBi in the actual implementation as the radiation pattern will change due to the
surround components. As such, during selection of antenna, you can select one with high peak
gain to compensate for the loss. Molex can offer assistant to choose the best location and best
tuning in-order to meet this peak gain requirement.