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s pe - 11 - 8 - 035/i /ss page 1 of 13 specification part no. : gw . 26 .011 1 product name : 2.4ghz miniature screw mount monopole antenna feature : sma(m) straight connector , 50 ohm 30mm long rohs compliant
s pe - 11 - 8 - 035/i /ss page 2 of 13 1 introduction t he gw.26 2.4 ghz monopole sma (m) mount antenna is ideal for 2.4 ghz wireless applications such as bluetooth and wireless lan. many module manufacturers specify peak gain limits for any antennas that are to be connected to that module. those peak gain limits are based on free - space conditions. in practice, the peak gai n of an antenna tested in free - space can degrade by at least 1 or 2dbi when put inside a device. so ideally you should go for a slightly higher peak gain antenna than mentioned on the module specification to compensate for this effect, giving you better pe rformance. upon testing of any of our antennas with your device and a selection of appropriate layout, integration technique, or cable, taoglas can make sure any of our antennas peak gain will be below the peak gain limits. taoglas can then issue a speci fication and/or report for the selected antenna in your device that will clearly show it complying with the peak gain limits, so you can be assured you are meeting regulatory requirements for that module. for example, a module manufacturer may state that the antenna must have less than 2dbi peak gain, but you dont need to select an embedded antenna that has a peak gain of less than 2dbi in free - space. this will give you a less optimized solution. it is better to go for a slightly higher free - space peak ga in of 3dbi or more if available. once that antenna gets integrated into your device, performance will degrade below this 2dbi peak gain due to the effects of gnd plane, surrounding components, and device housing. if you want to be absolutely sure, contact taoglas and we will test. choosing a taoglas antenna with a higher peak gain than what is specified by the module manufacturer and enlisting our help will ensure you are getting the best performance possible without exceeding the peak gain limits. connect or mount is fully customizable.
s pe - 11 - 8 - 035/i /ss page 3 of 13 2 specification wi - fi 2.4ghz frequency 2400~2500 mhz bandwidth 100 mhz peak gain 1.2 dbi radiation efficiency > 40 % radiation omni - directional polarization vertical power handling 1 w max power handling 1 w max electri cal wave monopole impedance 50? operating temperature - 40c ~ + 85c storage temperature - 40c ~ + 85c 3 mechanical properties mechanical properties colour black and green connector sma (m)
s pe - 11 - 8 - 035/i /ss page 4 of 13 4 antenna characteristics 4.1 a ntenna s11
s pe - 11 - 8 - 035/i /ss page 5 of 13 4.2 antenna peak gain -4 -3 -2 -1 0 1 2 3 2350 2360 2370 2380 2390 2400 2410 2420 2430 2440 2450 2460 2470 2480 2490 2500 2510 2520 2530 2540 2550 freq(mhz) peak gain(dbi) peak gain (dbi)
s pe - 11 - 8 - 035/i /ss page 6 of 13 4.3 antenna efficiency 0 10 20 30 40 50 60 2350 2360 2370 2380 2390 2400 2410 2420 2430 2440 2450 2460 2470 2480 2490 2500 2510 2520 2530 2540 2550 freq(mhz) efficiency(%) efficiency (%)
s pe - 11 - 8 - 035/i /ss page 7 of 13 4.4 antenna pattern (xy plane) z y x
s pe - 11 - 8 - 035/i /ss page 8 of 13 4.5 antenna pattern (xy plane) -40 -35 -30 -25 -20 -15 -10 -5 0 5 0 30 60 90 120 150 180 210 240 270 300 330 2400mhz 2420mhz 2440mhz 2460mhz 2480mhz 2500mhz
s pe - 11 - 8 - 035/i /ss page 9 of 13 4.6 antenna pattern (xz plane) -40 -35 -30 -25 -20 -15 -10 -5 0 0 30 60 90 120 150 180 210 240 270 300 330 2400mhz 2420mhz 2440mhz 2460mhz 2480mhz 2500mhz
s pe - 11 - 8 - 035/i /ss page 10 of 13 4.7 antenna pattern (yz plane) -40 -35 -30 -25 -20 -15 -10 -5 0 0 30 60 90 120 150 180 210 240 270 300 330 2400mhz 2420mhz 2440mhz 2460mhz 2480mhz 2500mhz
s pe - 11 - 8 - 035/i /ss page 11 of 13 5. outline drawings and structure key 1 connector sma (m)st brass 2 antenna cover tpee (black) 3 colour stripes apple green C
s pe - 11 - 8 - 035/i /ss page 12 of 13 6. packaging
s pe - 11 - 8 - 035/i /ss page 13 of 13 taoglas makes no warranties based on the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice. taoglas reserves the rights to this document and the information contained herein. reproduction, use or disclosure to third parties wit hout express permission is strictly prohibited. copyright ? taoglas ltd.

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