ANT-2.4-CW-RCL

Datasheet CW-RCL Series 2.4 GHz Right-Angle Whip Antenna The ANT-2.4-CW-RCL antenna is designed for 2.4 GHz WiFi/WLAN and ISM applications including Bluetooth® and ZigBee®. The right-angle rotating design of the ANT-2.4-CWRCL antenna allows for the antenna to be positioned for optimum performance. The ANT-2.4-CW-RCL antenna 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 2.4 GHz to 2.485 GHz ― VSWR: ≤ 1.5 ― Peak Gain: 2.3 dBi ― Efficiency: 77% • 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) • Single-band WiFi/WLAN ― 802.11b/g • ISM applications ― Bluetooth® ― ZigBee® ― IEEE 802.15.4 • Internet of Things (IoT) devices • Sensing and remote monitoring • Smart Home networking Ordering Information Part Number Description ANT-2.4-CW-RCL-SMA 2.4 GHz right-angle whip antenna with SMA plug (male pin) ANT-2.4-CW-RCL-RPS 2.4 GHz right-angle whip antenna with RP-SMA plug (female socket) Available from Linx Technologies and select distributors and representatives. ANT-2.4-CW-RCL-ccc Datasheet Electrical Specifications ANT-2.4-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 2.4 GHz 2.4 GHz to 2.485 GHz 1.5 2.3 -1.2 77 Linear Omnidirectional 5W 1/2-wave Dipole 50 Ω SMA plug (male pin) or RP-SMA plug (female socket) -20 °C to +85 °C 13.0 g (0.46 oz) 97.7 mm x 18.7 mm x 10.5 (3.80 in x 0.74 in x 0.41 in) 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-2.4-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-2.4-CW-RCL Antenna Dimensions 2 97.72 3.8 Datasheet ANT-2.4-CW-RCL-ccc VSWR 5 2485 2400 Figure 2 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 1 2380 10 2390 2400 2410 2420 2430 2440 2450 Frequency (MHz) 2460 2470 2480 2490 Reflected Power (%) 40 0 2500 Figure 2.  ANT-2.4-CW-RCL VSWR Return Loss 0 2485 2400 Return loss (Figure 3), 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. Return Loss (dB) -5 -10 -15 -20 -25 -30 2380 2390 2400 2410 2420 2430 2440 2450 Frequency (MHz) 2460 2470 2480 2490 2500 Figure 3.  ANT-2.4-CW-RCL Return Loss 3 ANT-2.4-CW-RCL-ccc Datasheet Peak Gain 5 2485 2400 The peak gain across the antenna bandwidth is shown in Figure 4. 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 2380 2390 2400 2410 2420 2430 2440 2450 Frequency (MHz) 2460 2470 2480 2490 2500 Figure 4.  ANT-2.4-CW-RCL Peak Gain Average Gain 5 2485 2400 Average gain (Figure 5), 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 2380 2390 2400 2410 2420 2430 2440 2450 Frequency (MHz) 2460 2470 Figure 5.  ANT-2.4-CW-RCL Antenna Average Gain 4 2480 2490 2500 Datasheet ANT-2.4-CW-RCL-ccc Radiation Efficiency 100 2485 2400 Radiation efficiency (Figure 6), 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 2380 2390 2400 2410 2420 2430 2440 2450 Frequency (MHz) 2460 2470 2480 2490 2500 Figure 6.  ANT-2.4-CW-RCL Antenna Radiation Efficiency 5 ANT-2.4-CW-RCL-ccc Datasheet 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 7 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 2485 MHz (2445 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 1 2 3 4 5 6 7 8 9 10 26 12 25 13 24 16 YZ-Plane Gain Figure 7.  ANT-2.4-CW-RCL Radiation Patterns 6 36 5 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 11 15 22 35 14 23 15 22 21 20 19 18 17 XY-Plane Gain 16 2400.0 2445.0 2485.0 Datasheet VSWR = 10 Return Loss 20 +1 ANT-2.4-CW-RCL-ccc Return Loss Antenna Definitions and Useful Formulas −1 10 20 VSWR - Voltage Standing Wave Ratio. VSWR is a unitless ratio that describes the power reflected from the antenna back to the radio. A lower VSWR value indicates better antenna performance at a given frequency. VSWR is easily derived from Return Loss. VSWR − 1 Return Loss = −20 log10Loss Return + 1+ 1 10 Return 20 VSWR Loss VSWR = 10 Return20 Loss + 1 VSWR = 10 −1 20 Return Loss − 1 due to reflected signals, measured in 10 Return Loss - Return loss represents the loss power at 20 the(G) antenna 10 log G in = db 10 decibels. A lower return loss value indicates better antenna performance at a given frequency. Return Loss is easily derived from VSWR. GdBd = GdBi − 2.51dB VSWR − 1 Return Loss = −20 log10 VSWR − 1 VSWR + 1 Return Loss = −20 log10 VSWR + 1 Return Loss 2 Efficiency (η) - The total power radiated from anVSWR antenna by the input power at the feed point of the +1 10 − divided 20 1 VSWR = antenna as a percentage. (G) = 10Return log Gdb VSWR 10Loss + 120 1 (G) −solution 10 Gdb =10 Total Radiated Efficiency - (TRE) The total efficiency of log an 10 antenna comprising the radiation = G − 2.51dB G dBiefficiency from the transmitter. efficiency of the antenna and the transmitteddBd (forward) GdBd = GdBi − 2.51dB 2 VSWRVSWR −1 −1 Loss TRELoss = η •= 1 −Return Return −20 log 10 11 10 VSWR 20 2 + + VSWR =VSWR − 1 VSWR + 1 Return Loss Gain - The ratio of an antenna’s efficiency in a given direction power produced by a theoretical VSWR − 20 1 2(G) to−the 1 10 + VSWR 1 lossless (100% efficient) isotropic antenna. The gain of an antenna is almost always expressed in decibels. VSWR + 1 log10 (G) Gdb = 10/4 VSWR VSWR − 1 2− 1 = −20 GdBi log − 2.51dB GdBd = Return Loss TRE = η • 1 − VSWR 10 − 1 2frequency +1 VSWR + 1 Peak Gain - The highest antenna gain TRE across for aVSWR given range. A directional antenna = all η •directions 1− VSWR + 1 will have a very high peak gain compared to average gain. 2 Average Gain - The average gain across all directions frequency range. VSWRfor−a1given log10 (G) Gdb = 10/4 Maximum Power - The maximum signal power which VSWRmay + 1be applied to an antenna feed point, typically measured in watts (W). GdBd = GdBi/4− 2.51dB Reflected Power - A portion of the forward power reflected back toward the amplifier due to a mismatch at the antenna port. VSWR − 1 2 TRE = η • 1 − VSWR −VSWR 1 2 +1 VSWR + 1 decibel (dB) - A logarithmic unit of measure of the power of an electrical signal. /4 decibel isotropic (dBi) - A comparative measure in decibels between an antenna under test and an isotropic VSWR − 1 2 radiator. TRE = η • 1 − VSWR + 1 between an antenna under test and decibel relative to a dipole (dBd) - A comparative measure in decibels an ideal half-wave dipole. Dipole - An ideal dipole comprises a straight electrical conductor measuring 1/2 wavelength from end to end connected at the center to a feed point for the radio. /4 Isotropic Radiator - A theoretical antenna which radiates energy equally in all directions as a perfect sphere. Omnidirectional - Term describing an antenna radiation pattern that is uniform in all directions. An isotropic antenna is the theoretical perfect omnidirectional antenna. An ideal dipole antenna has a donutshaped radiation pattern and other practical antenna implementations will have less perfect but generally omnidirectional radiation patterns which are typically plotted on three axes. 7 ANT-2.4-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. Bluetooth is a registered trademark of Bluetooth SIG, Inc. ZigBee is a registered trademark of ZigBee Alliance, Inc. Other product and brand names may be trademarks or registered trademarks of their respective owners. Copyright © 2020 Linx Technologies All Rights Reserved Doc# DS20220-78ANT