Planar Log-Periodic Antenna



In stock

SKU: AX-37AP Category:


Bare board only; no enclosure; includes preamplifier; receive only; 12V external power. The AX-37A antenna is a high-peformance, compact UHF directional log-periodic dipole array with an optional low noise amplifier. The antenna is available in several versions; with or without an amplifer, an indoor-mounted flat substrate or encapsulated in a ruggedized enclosure suitable for hand-held “direction finding” or outdoor mast mounting applications. The antenna is suitable for a wide variety of surveillance and monitoring applications where its excellent performance and directional characteristics can significantly improve reception, and rejection of interfering signals.

Technical Specifications
•Type: Log-Periodic Dipole Array
•Frequency Range: 300 to 3000 MHz
•Antenna Forward Gain: 6.0 dBi @ 950 MHz
•Amplifier Gain: •(AX-37A, AX-37AP, AX-37AH and AX-37AM only) 26 dB @ 500 MHz, 19 dB @ 1950 MHz
•Amplifier Noise Figure: 1.8 dB
•Amplifier IP3: +26 dBm
•Primary Sensitivity: E-field
•Polarization: Horizontal or vertical (depending on mounting)
•Usage AX-37A, AX-37AP, AX-37AH, AX-37AM: Receive only
AX-37AX, AX-37AHX, AX-37AMX: Receive and transmit
•Transmit Power: 5 W max (AX-37AX, AX-37AHX, AX-37AMX only)
•Impedance: 50 ohm (typ.)
•Power: AX-37A: 9V (PP3 type battery) @ 42 mA, AX-37AP, AX-37AH, AX-37AM: 12V DC @ 60 mA
•Connector: SMA
•Front-to-Back Ratio: 20 dB min above 600 MHz, 5 dB @ 430 MHz
•VSWR: 1.7:1
•Size: AX-37A, AX-37AP: 292 x 217 mm (11.5″ x 8.5″) AX-37AH, AX-37AM: 300 x 248 mm (11.8″ x 9.7″) (excluding handle or mounting bracket)
•Weight AX-37A: 155 g (5.5 oz), AX-37AP: 150 g (5.3 oz), AX-37AH: 720 g (25.4 oz), AX-37AM: 1100 g (38.8 oz)

Specifications are subject to change without notice due to continuous product development and improvement.