ANT-DB1-VDP-RPS

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Revised 1/23/14

Product Description

The VDP Series is a compact, center-fed antenna

that achieves efficient operation at any or all three

frequency bands. Its durable, unobtrusive housing

attaches permanently with integral adhesive to flat,

non-conductive surfaces such as windows, drywall,

ceiling tiles, plastic, etc. The antenna is supplied

2.40–2.48GHz)

• Center-fed from the bottom

• Surface-mount

• Low VSWR

• Excellent performance

• Omni-directional pattern

• Fully weatherized, durable & unobtrusive

• TNC, SMA or RP-SMA connector

Electrical Specications

Recom. Freq. Range: Band 1: 824–960MHz

Peak Gain: Band 1: –1.8dBi

Band 2: –1.7dBi

Band 3: –1.3dBi

Impedance: 50-ohms

Connector: TNC, SMA or RP-SMA

Cable: 9.8' (3 m) RG-174 coax

Oper. Temp. Range: –40°C to +80°C

ANT-DB1-VDP-xxx

Data Sheet

by

7.9 mm

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VSWR Graph

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

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.

159 Ort Lane, Merlin, OR, US 97532

Phone: +1 541 471 6256

Fax: +1 541 471 6251