ANT-916-CW-RCL

Datasheet CW-RCL Series 916 MHz Right-Angle Whip Antenna The 916-CW-RCL antenna is designed for sub-1 GHz and low-power, wide-area (LPWA) applications including LoRaWAN® and ISM band applications in the 902 MHz to 930 MHz band. The right-angle rotating design of the 916-CW-RCL antenna allows for the antenna to be positioned for optimum performance. The 916-CW-RCL is available with an SMA plug (male pin) or RP-SMA plug (female socket) connector for FCC Part 15 compliant applications. Features Applications • Performance at 902 MHz to 930 MHz ― VSWR: ≤ 1.8 ― Peak Gain: 4.2 dBi ― Efficiency: 72% • Compact size ― 97.7 mm x 18.7 mm x 10.5 mm • Rotating base allows for optimal positioning • SMA plug (male pin) or RP-SMA plug (female socket) • Low-power, wide-area (LPWA) applications ― LoRaWAN® ― WiFi HaLow™ • Internet of Things (IoT) devices • Smart Home networking ― Security systems ― Home weather stations • Remote sensing, monitoring and control ― Security systems ― Industrial machinery ― AMR (automated meter reading) Ordering Information Part Number Description ANT-916-CW-RCL-SMA 916 MHz right-angle whip antenna with SMA plug (male pin) ANT-916-CW-RCL 916 MHz right-angle whip antenna with RP-SMA plug (female socket) Available from Linx Technologies and select distributors and representatives. ANT-916-CW-RCL-ccc Datasheet Electrical Specifications ANT-916-CW-RCL Frequency Range VSWR (max) Peak Gain (dBi) Average Gain (dBi) Efficiency (%) Polarization Radiation Max Power Wavelength Electrical Type Impedance Connection Operating Temperature Range Weight Dimensions 916 MHz 902 MHz to 930 MHz 1.8 4.2 -1.5 72 Linear Omnidirectional 5W 1/4-wave Monopole 50 Ω SMA plug (male pin) or RP-SMA plug (female socket) -20 °C to +85 °C 12.5 g (0.44 oz) 97.7 mm x 18.7 mm x 10.5 (3.80 in x 0.74 in x 0.41 in) Electrical specifications and plots measured with a 102 mm x 102 mm (4.0 in x 4.0 in) reference ground plane. Packaging Information The CW-RCL series antennas are packaged, 50 pcs in a clear plastic bag, 500 pcs per inner box, and 2000 pcs per export box. Distribution channels may offer alternative packaging options. Product Dimensions Figure 1 provides dimensions of the ANT-916-CW-RCL. The rotating base allows for continuous positioning through 360 degrees even while installed. 97.7 mm (3.80 in) 360° Rotation 18.7 mm (0.74 in) Ø10.5 mm (0.41 in) Ø6.0 mm (0.20 in) Figure 1.  ANT-916-CW-RCL Antenna Dimensions 2 97.72 3.8 Datasheet ANT-916-CW-RCL-ccc Counterpoise 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-916-CW-RCL is characterized on the edge of a 102 mm x 102 mm ground plane as shown in Figure 2. This orientation, represents the most common orientation in end-product use. Figure 2.  ANT-916-CW-RCL on Evaluation PCB 3 ANT-916-CW-RCL-ccc Datasheet VSWR 5 930 902 Figure 3 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. VSWR 4 30 3 20 2 10 1 0 900 902 904 906 908 910 912 914 916 918 920 922 924 926 928 930 932 Frequency (MHz) Figure 3.  ANT-916-CW-RCL VSWR Reflected Power (%) 40 Return Loss 0 930 902 Return loss (Figure 4), 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. -2 Return Loss (dB) -4 -6 -8 -10 -12 -14 -16 -18 -20 4 900 902 904 906 908 910 912 914 916 918 920 922 Frequency (MHz) Figure 4.  ANT-916-CW-RCL Return Loss 924 926 928 930 932 Datasheet ANT-916-CW-RCL-ccc Peak Gain 5 930 902 The peak gain across the antenna bandwidth is shown in Figure 5. 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. Peak Gain (dBi) 0 -5 -10 -15 -20 900 902 904 906 908 910 912 914 916 918 920 922 Frequency (MHz) Figure 5.  ANT-916-CW-RCL Peak Gain 924 926 928 930 932 Average Gain 5 930 902 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. Average Gain (dBi) 0 -5 -10 -15 -20 900 902 904 906 908 910 912 914 916 918 920 922 924 Frequency (MHz) Figure 6.  ANT-916-CW-RCL Antenna Average Gain 926 928 930 932 5 ANT-916-CW-RCL-ccc Datasheet Radiation Efficiency 100 930 902 Radiation efficiency (Figure 7), 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. 90 80 Efficiency (%) 70 60 50 40 30 20 10 0 6 900 902 904 906 908 910 912 914 916 918 920 922 924 926 Frequency (MHz) Figure 7.  ANT-916-CW-RCL Antenna Radiation Efficiency 928 930 932 Datasheet ANT-916-CW-RCL-ccc 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 8 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 902 MHz to 930 MHz (916 MHz) 34 35 33 32 31 30 29 28 36 5 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 1 2 3 4 34 5 33 6 32 7 31 8 27 26 30 9 29 10 28 11 27 12 25 13 24 14 23 15 22 21 20 19 18 XZ-Plane Gain 17 16 35 36 5 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 1 2 3 4 34 5 33 6 32 7 31 8 26 30 9 29 10 28 11 27 12 25 13 24 14 23 21 20 19 18 17 36 5 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 1 2 3 4 5 6 7 8 9 10 11 26 12 13 25 24 15 22 35 16 YZ-Plane Gain 14 23 15 22 21 20 19 18 17 16 902.0 915.0 930.0 XY-Plane Gain Figure 8.  ANT-916-CW-RCL Radiation Patterns 7 ANT-916-CW-RCL-ccc Datasheet Website: http://linxtechnologies.com Linx Offices: 159 Ort Lane, Merlin, OR, US 97532 Phone: +1 (541) 471-6256 E-MAIL: info@linxtechnologies.com Linx Technologies reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information. Wireless Made Simple is a registered trademark of Linx Acquisitions LLC. LoRaWAN is a registered trademark of Semtech Corporation. Other product and brand names may be trademarks or registered trademarks of their respective owners. Copyright © 2020 Linx Technologies All Rights Reserved Doc# DS20220-80ANT