ANT-DB1-WRT-MON-RPS

## **ANT-DB1-WRT-MON-ccc Dual-Band WiFi External Panel-Mount Antenna** 

The ANT-DB1-WRT-MON is a low-profile, panel- mount monopole antenna designed for superior performance in the 2.4 GHz and 5 GHz bands supporting WiFi 5 and WiFi 4 in the 2.5 GHz and 5 GHz ranges. 

The ANT-DB1-WRT-MON antenna’s compact size allows it to be mounted securely in enclosures requiring added security. The ANT-DB1-WRT- MON antenna’s compact profile and rugged dome reduces the likelihood of accidental damage versus a whip antenna. 

The antenna connects to the radio via SMA plug (male pin), RP-SMA plug (female socket) or MHF1/ U.FL-type plug (female socket) on 216 mm (8.5 in.) coaxial cable. 

## **FEATURES** 

- Performance at 2.4 GHz to 2.5 GHz – VSWR: ≤ 2.2 

   - Peak Gain: 2.1 dBi 

   - – Efficiency: 70% 

- Performance at 5.150 GHz to 5.895 GHz 

   - VSWR: ≤ 10.8 

   - Peak Gain: 2.6 dBi 

   - – Efficiency: 28% 

- Low-profile – Installed height: 27.0 mm (1.06 in) 

- Mounts permanently with pressure sensitive adhesive ring and provided hex nut 

## **APPLICATIONS** 

- WiFi/WLAN coverage – WiFi 5 (802.11ac) 

- – WiFi 4 (802.11n) 

- – 802.11b/g 

- • 2.4 GHz ISM applications 

   - Bluetooth® 

   - ZigBee® 

- U-NII bands 1-8 

- Cellular vehicle to everything (C-V2X) 

- Internet of Things (IoT) devices 

- Smart Home networking 

   - Sensing and remote monitoring 

   - Security 

## **ORDERING INFORMATION** 

|Part Number|Description|
|---|---|
|ANT-DB1-WRT-MON-<br>RPS|Antenna with 216 mm (8.5 in) of RG-174 coaxial cable with an RP-SMA plug<br>(female socket)connector|
|ANT-DB1-WRT-MON-<br>SMA|Antenna with 216 mm (8.5 in) of RG-174 coaxial cable with an SMA plug<br>(malepin)connector|
|ANT-DB1-WRT-MON-<br>UFL|Antenna with 216 mm (8.5 in) of 1.32 mm coaxial cable with an MHF1/U.FL-type plug<br>(female socket)connector|



Available from Linx Technologies and select distributors and representatives. 

DATA AND DEVICES / ANT-DB1-WRT-MON-ccc 

## **TABLE 1. ELECTRICAL SPECIFICATIONS** 

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ANT-DB1-WRT-MON 2.4 GHz 5.8 GHz<br>Frequency Range 2.400 GHz to 2.500 GHz 5.150 GHz to 5.895 GHz<br>VSWR (max) 2.2 10.8<br>Peak Gain (dBi) 2.1 2.6<br>Average Gain (dBi) -1.6 -8.9<br>Efficiency (%) 70 28<br>Polarization Linear Radiation Omnidirectional<br>Impedance 50 Ω Max Power 5 W<br>Wavelength 1/4-wave Electrical Type Monopole<br>**----- End of picture text -----**<br>


Electrical specifications and plots measured with a 102 mm x 102 mm (4.0 in x 4.0 in) reference ground plane. 

## **TABLE 2. MECHANICAL SPECIFICATIONS** 

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Parameter<br>Operating Temp. Range -40 °C to +85 °C<br>Weight -RPS & -SMA = 19.0 g (0.67 oz), -UFL = 14.0 g (0.49 oz)<br>MHF1/U.FL-type plug (female socket) on 1.32 mm coax cable RP-SMA plug (female<br>Connection socket) on RG-174 coax cable SMA plug (male pin) on RG-174 coax cable<br>Coaxial Cable, minimum<br>RG-174: 10.2 mm (0.40 in), 1.32 mm: 6.0 mm (0.24 in)<br>inside bend radius<br>Dimensions Height: 27.0 mm (1.06 in), Diameter: 19.0 mm (0.75 in)<br>**----- End of picture text -----**<br>


## **PACKAGING INFORMATION** 

The ANT-DB1-WRT-MON antenna is individually sealed in a clear plastic bag. Individual packages are packed in a bag of 100 pcs. Distribution channels may offer alternative packaging options. 

## **PRODUCT DIMENSIONS** 

Figure 1 provides dimensions for the ANT-DB1-WRT-MON series antenna. 

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Adhesive Ring Ø19.0 mm<br>(0.75 in)<br>7/16-28 UNEF<br>Hex Nut<br>-SMA, -RPS<br>-UFL<br>8.0 mm<br>(0.31 in)<br>27.0 mm<br>216.0 mm (8.5 in) (1.06 in)<br>**----- End of picture text -----**<br>


Figure 1. ANT-DB1-WRT-MON Antenna Dimensions 

DATA AND DEVICES / ANT-DB1-WRT-MON-ccc 

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## **RECOMMENDED MOUNTING** 

The recommended enclosure mounting dimensions are shown in Figure 2. The ANT-DB1-WRT-MON series antenna is supplied with an integrated closed-cell pressure sensitive adhesive ring which helps seal enclosures against external elements. The adhesive ring has a protective plastic backing that must be removed prior to installation. A pull tab has been provided for easy removal of the protective backing. The antenna can be permanently mounted using the provided hex nut which should be tightened to 3.0 kgf/cm (5 in/lbs) max. The recommended maximum enclosure wall thickness is 3.18 mm (0.125 in). 

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Ø10.8 mm<br>(0.43 in)<br>**----- End of picture text -----**<br>


Figure 2. ANT-DB1-WRT-MON Series Antenna Recommended Enclosure Mounting Dimensions 

## **GROUND PLANE** 

1/4-Wave monopole antennas require an associated ground plane counterpoise for proper operation. The size and location of the ground plane relative to the antenna will affect the overall performance of the antenna in the final design. When used in conjunction with a ground plane smaller than that used to tune the antenna, the center frequency typically will shift higher in frequency and the bandwidth will decrease. The proximity of other circuit elements and packaging near the antenna will also affect the final performance. 

For further discussion and guidance on the importance of the ground plane counterpoise, please refer to Linx Application Note, AN-00501: Understanding Antenna Specifications and Operation. 

## **ANTENNA ORIENTATION** 

The ANT-DB1-WRT-MON antenna is characterized with the antenna at the center of a 102 mm x 102 mm ground plane as shown in Figure 3. 

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Figure 3. ANT-DB1-WRT-MON Test Orientation<br>**----- End of picture text -----**<br>


DATA AND DEVICES / ANT-DB1-WRT-MON-ccc 

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## **VSWR** 

Figure 4 provides the voltage standing wave ratio (VSWR) across the antenna bandwidth. VSWR describes the power reflected from the antenna back to the radio. A lower VSWR value indicates better antenna performance at a given frequency. Reflected power is also shown on the right-side vertical axis as a gauge of the percentage of transmitter power reflected back from the antenna. 

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10<br>40<br>9<br>8<br>7 30<br>6<br>5 20<br>4<br>3 10<br>2<br>1 0<br>2400 2700 3000 3300 3600 3900 4200 4500 4800 5100 5400 5700 6000<br>Frequency (MHz)<br>2400 2500 5150 5895<br>VSWR<br>Reflected Power (%)<br>**----- End of picture text -----**<br>


Figure 4. ANT-DB1-WRT-MON VSWR, with Frequency Band Highlights 

## **RETURN LOSS** 

Return loss (Figure 5), represents the loss in power at the antenna due to reflected signals. Like VSWR, a lower return loss value indicates better antenna performance at a given frequency. 

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0<br>-2<br>-4<br>-6<br>-8<br>-10<br>-12<br>-14<br>-16<br>-18<br>-20<br>2400 2700 3000 3300 3600 3900 4200 4500 4800 5100 5400 5700 6000<br>Frequency (MHz)<br>2400 2500 5150 5895<br>Return Loss (dB)<br>**----- End of picture text -----**<br>


Figure 5. ANT-DB1-WRT-MON Return Loss, with Frequency Band Highlights 

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## **PEAK GAIN** 

The peak gain across the antenna bandwidth is shown in Figure 6. Peak gain represents the maximum antenna input power concentration across 3-dimensional space, and therefore peak performance at a given frequency, but does not consider any directionality in the gain pattern. 

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5<br>0<br>-5<br>-10<br>-15<br>-20<br>-25<br>-30<br>2400 2700 3000 3300 3600 3900 4200 4500 4800 5100 5400 5700 6000<br>Frequency (MHz)<br>2400 2500 5150 5895<br>Peak Gain (dBi)<br>**----- End of picture text -----**<br>


Figure 6. ANT-DB1-WRT-MON Peak Gain, with Frequency Band Highlights 

## **AVERAGE GAIN** 

Average gain (Figure 6), is the average of all antenna gain in 3-dimensional space at each frequency, providing an indication of overall performance without expressing antenna directionality. 

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5<br>0<br>-5<br>-10<br>-15<br>-20<br>-25<br>-30<br>2400 2700 3000 3300 3600 3900 4200 4500 4800 5100 5400 5700 6000<br>Frequency (MHz)<br>2400 2500 5150 5895<br>Average Gain (dBi)<br>**----- End of picture text -----**<br>


Figure 7. ANT-DB1-WRT-MON Antenna Average Gain, with Frequency Band Highlights 

DATA AND DEVICES / ANT-DB1-WRT-MON-ccc 

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## **RADIATION EFFICIENCY** 

Radiation efficiency (Figure 8), shows the ratio of power delivered to the antenna relative to the power radiated at the antenna, expressed as a percentage, where a higher percentage indicates better performance at a given frequency. 

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100<br>90<br>80<br>70<br>60<br>50<br>40<br>30<br>20<br>10<br>0<br>2400 2700 3000 3300 3600 3900 4200 4500 4800 5100 5400 5700 6000<br>Frequency (MHz)<br>2400 2500 5150 5895<br>Efficiency (%)<br>**----- End of picture text -----**<br>


Figure 8. ANT-DB1-WRT-MON Antenna Radiation Efficiency, with Frequency Band Highlights 

DATA AND DEVICES / ANT-DB1-WRT-MON-ccc 

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## **RADIATION PATTERNS** 

Radiation patterns provide information about the directionality and 3-dimensional gain performance of the antenna by plotting gain at specific frequencies in three orthogonal planes. Antenna radiation patterns are shown in Figure 9 using polar plots covering 360 degrees. The antenna graphic at the top of the page 

provides reference to the plane of the column of plots below it. Note: when viewed with typical PDF viewing software, zooming into radiation patterns is possible to reveal fine detail. 

XZ-Plane Gain 

YZ-Plane Gain 

XY-Plane Gain 

## **2400 MHz to 2500 MHz (2450 MHz)** 

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## **5150 MHz to 5895 MHz (5500 MHz)** 

Figure 9. ANT-DB1-WRT-MON Radiation Patterns 

DATA AND DEVICES / ANT-DB1-WRT-MON-ccc 

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DATA AND DEVICES / ANT-DB1-WRT-MON-ccc