2 GHz to 4 GHz Cavity Backed Spiral Antenna OBS-2040

0 out of 5

$1235

Frequency: 2.0GHz-4.0GHz
Gain: -3Typ~1Typ
VSWR: 2.5:1
Connection Type: SMA Female
Polarization: LHCP/RHCP
The OBS-2040 is suitable for electronic-warfare, direction-finding, telemetry, and surveillance systems, as well as flush-mounted airborne applications.

SKU: OBS-2040 Categories: Cavity Backed Spiral Antenna, RF Antenna

Description

Cavity Backed Spiral Antenna

2GHz to 4GHz

OBS2040

The OBS2040 is a compact, moderate gain, moderate VSWR, circularly-polarized cavity-backed spiral antenna designed to transmit and receive in the frequency band of 2.0 GHz to 4.0 GHz. The antenna exhibits an excellent impedance match and radiation pattern.

It is capable of receiving both linearly polarized signals and circularly polarized signals. The linear gain (dBil) is about 3 dB lower than the circular gain (dBic).

The antenna has advantages such as a low profile, planar aperture, no phase center offset, near-constant beam width across the frequency band, symmetrical radiation beam width, extreme flexibility for carrying, and lightweight.

These advantages make the antenna a very good candidate for electronic warfare, direction finding, telemetry, and surveillance systems, as well as flush-mounted airborne applications. The antenna can also be used as a broadband feed for reflector antennas.

The antenna’s outer dimensions are a diameter of 68mm and a height of 50mm.

Applications

  • Satellite communications
  • Personal mobile communications
  • Electronic warfare, direction finding, telemetry, and surveillance systems
  • Embedded airborne applications

Features

  • Very convenient to carry
  • Wide frequency band
  • Lightweight
  • Small volume
  • Easy to package
  • Main lobe width
  • Circular polarization, wide beam width
Cavity Backed Spiral Antenna Specifications
Part No. OBS2040
Frequency 2GHz – 4GHz
Nominal Gain -3 dB Typ ~ 1 dB Typ
VSWR Maximum 2.5:1, Typical 2.0:1
Pattern Directional Beam
3 dB Beam Width 65°Minimum, Typical
10 dB Beam Width 120°Typical
Input Impedance 50 Ohms Nominal
Input Connector SMA Female
2 GHz to 4 GHz Cavity Backed Spiral Antenna OBS-2040-Outline
2 GHz to 4 GHz Cavity Backed Spiral Antenna OBS-2040-Plot
2 GHz to 4 GHz Cavity Backed Spiral Antenna OBS-2040-Plot
2 GHz to 4 GHz Cavity Backed Spiral Antenna OBS-2040-Plot

Additional information

Min. Frequency (GHz)

2

Max. Frequency (GHz)

4

Gain (dBi)

-3 Typ~1 Typ16°

VSWR

2.5:1

Impedance (Ω)

50

Connection Type

SMA-Female

Polarization

LHCP/RHCP