Planar Log-Periodic Antenna



In stock

SKU: AX-37A Category:


Bare board only; no enclosure; includes preamplifier; receive only; 9V battery power. The AX-37A antenna is a compact UHF log-periodic directional antenna, available in three versions: a bare board for internal use (AX-37A), an outdoor mounting version (AX-37AM) and a hand-held version (AX-37CH). This antenna is constructed on a high-quality fiber-glass substrate, with an integrated low noise amplifier. The user can also specify antenna versions without the inbuilt amplifier, which does not require any power to operate. Versions without the amplifier can be also used as low power transmit antennas.

Technical Specifications
•Type: Log-Periodic Dipole Array
•Frequency Range: 300 to 3000 MHz
•Antenna Forward Gain: 6.0 dBi @ 950 MHz
•Amplifier GainL (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.