Features
- Dual feed patch element
- Axial ratio: 2 dB typ.
- Low noise LNA: 1 dB typ.
- High rejection mid-section SAW filter
- High gain: 26 dB typ.
- Wide voltage input range: 2.5 to 16 VDC
- IP68 weather proof housing
- Low current consumption: 12 mA
Benefits
- Greatly enhanced multipath rejection
- Improved GNSS reliability
- Excellent signal to noise ratio
- CE RED, REACH, and RoHS compliant
- Ideal for harsh environments
- Excellent out of band signal rejection
Key Considerations
Ideal for high accuracy applications while providing high out of band signal rejection, the TW4721 is the smallest dual feed, high performance antenna available, providing truly circular response over its entire bandwidth thereby producing superior multi-path signal rejection.
The TW4721 features a novel 25mm dual-feed wide-band patch element that provides a more linear carrier phase response by virtue of the axial ratio that is greatly improved across the full frequency bandwidth. The signals from the two orthogonal feeds are combined in a hybrid combiner, amplified in a wide-band LNA, then band-split for narrow filtering in each band and further amplified prior to recombination at the output.
The TW4721 is housed in a compact IP67 compliant enclosure that can be surface mounted via magnet, screws or adhesive material.
LNA Pre-filter Available
If you need enhanced protection against high level sub-harmonic signals like LTE and near frequency signals such as WiFi, the alternative TW4722 provides these additional benefits with an LNA pre-filter. Click here to learn more about the TW4722.
Dimensions in Millimeters
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Learn more about CalianTW4721 Single Band GNSS Antenna
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