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简 介
Built on patented PowerHelix® filtering
antenna technology, the SL1206 surface-mount
high-gain GPS antenna is the smallest active quadrifilar helix
antenna available, providing high performance in difficult GPS
applications. The SL1206 integrates a high-performance, high-gain,
low-noise amplifier with GeoHelix®-P2 antenna for receivers requiring
an active input.The SL1206 antenna is balanced, which isolates it from the device and enables the antenna to reject
common mode noise resident on the device ground plane. The construction and materials of the antenna
constrain its near-fi eld to a very small volume, therefore materials near the antenna have negligible de-tuning
effects and the antenna maintains its pattern and effi ciency in the presence of dielectric loading. As a dielectricall
-loaded antenna with a high-performance SAW filter, the SL1206 antenna effectively attenuates signals from
common GSM and ISM frequencies by as much as 30dB, minimizing the need for additional fi ltering.The SL1206 antenna may be deployed in an external,"stub-style" configuration, but it is also a simple antenna to embed due to its isolation properties. The antenna is deployed with either a black radome or an ABS plastic sleeve.
．GPS Active Antenna
．GPS L1-band quadrifilar helix antenna
．25dB pre-amplified gain
．Low voltage, low current, low noise
．High isolation from platform-rejects common-mode noise Negligible proximity de-tuning
．Integral SAW filter attenuates common cellular frequencies up to 55dB
．Constrained near-field-doesn't interact with nearby components or the user
．Strong circular polarization
．Broad beam width–excellent near-horizon reception
．Predictable performance in all modes of use
．the device is handheld, body-worn, or otherwise surrounded by high-dielectric
materials that would de-tune conventional antennas
．the antenna is tightly integrated with other antennas, e.g., Bluetooth®/GPS receivers or
GPS/GSM mobile phones
．there are tight constraints on the size of the device or the amount of space allocated to ground
planes
．the GPS receiver requires 20dB or more of input pre-amplifi cation;
．the orientation of the device is random
．the antenna will be embedded in the device
规格指标
．Frequency: 1575.42MHz ± 2MHz
．Polarization: RHCP
．Voltage: 2.8V~3.6V 3.3V (typical)
．Current: 13mA (typical)
．Gain: +25dBic (typical)
．Beamwidth: > 135°(typical)
．Beamwidth(3dB): 20MHz
．Axial Ratio: < 2.0@zenith(typical)
．VSWR: < 2:1 (typical)
．Impedance: 50
．Noise Figure: 1.2dB (typical)
．3rd Order Intercept: -10dBm
．Op. Temp.: -40℃ to +85℃
．Element Dim.: 10mm(dia) x 17mm(length)
．Overall Dim.(w/radome): 13mm(dia) x 14.6mm(width) x 44mm(length)
．Weight(excl radome or sleeve):8.4g
．Mounting: SMT
订购信息
| Item |
Model |
Description |
Part No. |
| 1 |
SL1206R |
|
04053-0400 |
| 2 |
SL1206SB |
|
04053-0410 |
|
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