FXP14.09.0100A Taoglas Limited, FXP14.09.0100A Datasheet - Page 6

• Manufacturer Part Number: FXP14.09.0100A
• Description: ANT 6-BAND FLEX PCB W/CABLE
• Manufacturer: Taoglas Limited

Specifications of FXP14.09.0100A

• Antenna Type: Flat Patch
• Number Of Bands: 6
• Frequency: *
• Vswr: *
• Gain: *
• Termination: *
• Height (max): *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Mounting Type: -
• Other names: 931-1057

Return Loss/VSWR, Gain and Radiation Characteristics, in the customer device.
Please contact us for costing for this service.
[e-mail]
Further services such as optimizing the RF performance of the whole device to
enable the product to pass network approvals, regulatory compliance or specific
performance targets are offered as well.
16. ISOLATION
Isolation is a measure of coupling between two different antennas. For example
in a CDMA diversity antenna plan the target is to get -10dB isolation between the
main and the auxiliary antenna. Greater isolation can be achieved by using
different polarizations on the two antennas. For example the main antenna has
horizontal linear polarization and the auxiliary antenna has vertical linear
polarization. In practice this is difficult for Omni-directional internal cellular
antennas as there is cross-polarization of the waves occurring. So the normal
solution is to keep the distance from both antennas as far away as possible.
The two antennas cables should not cross over or come close to the other’s
antenna.
Testing is carried by sending a signal in one antenna and measuring the power
of the signal at the other antenna. There should be a 10dB or more difference
between the transmit and the receive signal. The easiest method is to keep
moving the two antennas farther from each other until the target isolation is
achieved.
17. CABLE & CONNECTOR
Ø1.13mm diameter micro coax cable is preferred in most cellular antenna
projects as most economical solution. Cable loss is not a big factor if cable length
is kept below 150mm.
The cable needs good grounding. If the body of the cable is near the ground of
the device the cable should be as near as possible to the device ground.
The cable should not be looped because it will cause frequency shifts and also
create magnetic field which will interact with the main antenna magnetic field.
The cable should be kept away from emitting components such as LCD driver
chip or CPU.
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Taoglas Limited, Unit 3 Enniscorthy Technology Centre, Enniscorthy, Co. Wexford, Ireland
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