ANT-1.4-CW-HW LINX | Alldatasheet

Document overview

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Technical content

Features

  • Very low cost
  • Internal counterpoise
  • Excellent performance
  • Omni-directional pattern
  • Outstanding VSWR
  • Rugged & damage-resistant
  • Standard SMA or Part 15 compliant RP-SMA connector
  • Internal O-ring seal on connector Electrical Specifications Center Frequency: 1.4GHz Recmd. Freq. Range: 1.36–1.44GHz Wavelength: ½-wave VSWR: ≤ 2.0 typical at center Peak Gain: 0.7dBi Impedance: 50-ohms Connection: SMA or RP-SMA Oper. Temp. Range: –20°C to +85°C Electrical specifications and plots measured with a 10.16 cm x 10.16 cm (4.00" x 4.00") reference ground plane. ANT-1.4-CW-HW Data Sheet by

Ordering Information

ANT-1.4-CW-HW (with RP-SMA connector) ANT-1.4-CW-HW-SMA (with SMA connector) End View 8.1 mm (0.32") 120 mm (4.72") 10.7 mm (0.42") 5.6 mm (0.22") 15.5 mm (0.61")

– 2 – by Data Sheet ANT-1.4-CW-HW VSWR Reflected Power 3:1 2:1 1:1 25% 11% 1.4GHz 1.6GHz1.2GHz 1.29 VSWR Graph What is VSWR? The Voltage Standing Wave Ratio (VSWR) is a measurement of how well an antenna is matched to a source impedance, typically 50-ohms. It is calculated by measuring the voltage wave that is headed toward the load versus the voltage wave that is reflected back from the load. A perfect match will have a VSWR of 1:1. The higher the first number, the worse the match, and the more inefficient the system. Since a perfect match cannot ever be obtained, some benchmark for performance needs to be set. In the case of antenna VSWR, this is usually 2:1. At this point, 88.9% of the energy sent to the antenna by the transmitter is radiated into free space and 11.1% is either reflected back into the source or lost as heat on the structure of the antenna. In the other direction, 88.9% of the energy recovered by the antenna is transferred into the receiver. As a side note, since the “:1” is always implied, many data sheets will remove it and just display the first number. How to Read a VSWR Graph VSWR is usually displayed graphically versus frequency. The lowest point on the graph is the antenna’s operational center frequency. In most cases, this will be different than the designed center frequency due to fabrication tolerances. The VSWR at that point denotes how close to 50-ohms the antenna gets. Linx specifies the recommended bandwidth as the range where the typical antenna VSWR is less than 2:1.

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