Part #: 1027-028

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GPS Active L1 Antenna, +11 dB Active Gain, SMA(m)
  • Elevation Pattern
  • Azimuth Pattern
  • Engineering Drawing: All dimensions are in inches
  • Images: Gain/Axial Ratio vs. Frequency
  • Images: Axial Ratio

Product Overview

The Southwest Antennas part # 1027-028 GPS Active L1 Antenna is a high-performance and ruggedized product designed to provide accurate timing and location services for GPS receivers, manpack radios, hand-held tactical radio systems, and other small form factor radio systems.

The GPS L1 Active Antenna features 11 dB of active low noise amplifier gain coupled with narrowband SAW filtering providing >50 dB out of band rejection from 35 MHz above and below the L1 center frequency. The integrated high linearity LNA provides both a very low noise figure (<2.2 dB) and a high output IP3 (+15 dBm).

This antenna's narrowband, commercial-grade filter makes it especially useful for applications where the GPS receiver will be located next to transmit antennas by working to eliminate co-site interference, keeping the GPS antenna operational for critical location and timing services.

Features: 
  • GPS L1 frequency +/-10 MHz bandwidth
  • Out-of-band jamming immunity
  • Superior out-of-band rejection
  • Ultra-low noise figure
  • Ultra-low power consumption
  • Active LNA & Dual SAW filter circuitry
  • Small form factor, light-weight
  • Ruggedized design
  • 50 V/m jamming resistant
  • Burn-out protection, in-band jamming
  • Ground plane independent
  • Recessed SMA(m) RF connector
  • Exceptional pattern bandwidth
  • Waterproof to 20 meters (65.6 ft.) when mated

Applications

  • Navigation systems
  • Military and security
  • Manpack radios
  • Handheld radios
  • Small form factor radios
  • Low profile vehicle mounts
  • Unattended/ Intelligent Munitions Systems
  • Dismounted soldier-level communications
  • Unmanned ground vehicles
  • I.E.D. recognition & destruction jamming systems
  • Asset tracking
  • Precision timing
  • LBS & M2M applications
  • Oil & gas industries
  • Law enforcement
  • Mobile computing
  • UAV Systems

Product Specifications

Parameter Value Units Tolerance
Antenna Pattern Hemispherical Antenna
Frequency Band GPS L1
Impedance 50 Ohms
Minimum Frequency 1.565 / 1,565 GHz / MHz
Maximum Frequency 1.585 / 1,585 GHz / MHz
Frequency Bandwidth 0.02 / 20 GHz / MHz
Maximum VSWR 2.0:1
Maximum Gain 1.50 dBic
Axial Ratio 1.0 dB
Polarization RHCP
Horizontal (AZ) Beamwidth 360 Degrees
Vertical (EL) Beamwidth 113 - 133 Degrees
Ground Plane Required No
Radome Material Ultem 1000
Color Black
Immersion 20 Meters When fully mated
RF Connector Type SMA(m) Non-Rotating
IP Rating IP67
Storage Temperature Range -60 to +185 °F (-51.1 to +85 °C)
Product Height 2.13 / 54.10 inches / mm ± .02
Product Diameter 0.70 / 17.78 inches / mm ± .015
Product Weight 1.1 / 29.8 oz / grams

LNA Specifications

Parameter Value Units Tolerance
LNA Gain +11 dB +1/-2 dB
LNA NF 2.2 dB
Output P1dB 2 dBm
Output IP3 15 dBm
LNA DC Voltage Range 2.5 - 24 VDC
Input IP3 6.1 dBm
Input P1dB -2.0 dBm
Filtering >50 dB @ ±35 MHz of CF
ESD Protection Protection Diode

Downloads

Data Sheet (PDF )