Part #: 1027-023

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GPS Active L1 Antenna, +28 dB Active Gain, SMA(m) RF Connector
  • Elevation Pattern: LHCP and RHCP Elevation Patterns (Passive Element), referenced to +5 dBi
  • Azimuth Pattern: Passive Element, Referenced to +5 dBi
  • Engineering Drawing: All dimensions are in inches
  • Images: Elevation Axial Ratio Plot (Passive Element)
  • Images: LNA Gain/Rejection Plot

Product Overview

Southwest Antennas part # 1027-023 is a small form factor GPS Active L1 antenna which can be deployed for accurate timing and location services on GPS receivers, manpack radios, hand-held tactical radio systems, and other small form factor radio systems.

The small size, light weight, and very low DC current draw of this rugged, high-performance GPS antenna make it ideal for unmanned system, autonomous vehicles, and other automated or remote assets. The very low DC current draw of this product compared to similar Active GPS antennas means less drain on your battery and longer system uptime.

This GPS L1 Active antenna features 28 dB of active low noise amplifier gain coupled with narrowband SAW filtering providing >50 dB out of band rejection from 35MHz 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).

Features: 
  • GPS L1 frequency +/- 20 MHz bandwidth
  • Ultra low power consumption: 9.5 mA
  • Small form factor, light-weight design: 0.5 oz
  • Ruggedized design
  • Exceptional pattern bandwidth
  • Out-of-band jamming immunity
  • Superior out of band rejection
  • Ultra low noise figure
  • Active LNA & Dual SAW filter circuitry
  • 50 V/m jamming resistant
  • Burn-out protection, in-band jamming protection
  • Ground plane independent
  • Recessed non-rotating SMA(m) RF connector
  • 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 1.555 / 1,555 GHz / MHz
Maximum Frequency 1.595 / 1,595 GHz / MHz
Frequency Bandwidth 0.04 / 40 GHz / MHz
Maximum VSWR 2.0:1
Maximum Gain 1.20 dBic
Axial Ratio 1.3 dB Max @ zenith (2 dB max @ -3dB beamwidth). Axial ratio measured from cF @ 1,575 MHz.
Polarization RHCP
Horizontal (AZ) Beamwidth 360 Degrees
Vertical (EL) Beamwidth 114 - 124 Degrees
Ground Plane Required No
Radome Material Ultem 1000
Color Black
Immersion 20 Meters When fully mated
RF Connector Type Recessed SMA(m) Non-Rotating
IP Rating IP67
Storage Temperature Range -60 to +185 °F (-51.1 to +85 °C)
Product Height 1.73 / 43.94 inches / mm ±.010
Product Diameter 0.60 / 15.24 inches / mm ±.010
Product Weight 0.5 / 14.2 oz / grams

LNA Specifications

Parameter Value Units Tolerance
LNA Gain +28 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
LNA DC Current 9.5 mA
Filtering >50 dB @ ±35 MHz of CF
ESD Protection Protection Diode

Downloads

Data Sheet (PDF )