spe - 11 - 8 - 151 / a page 1 of 8 s pecification part no. : pc31.07.0050a product name : dual - band ism 868/915m hz fr4 antenna with 50mm ?1.13 ipex mhf (u.fl comp) feature : high efficiency fr4 antenna 90mm*55mm*0.8mm ism 868/915m hz rohs compliant
spe - 11 - 8 - 151 / a page 2 of 8 1. introduction this high gain, low profile, pcb antenna and mini coaxial cable is an 868mhz ~ 928mhz ism dual - band omni - directional antenna intended for use in 868mhz and 915mhz applications. it is optimized for free space to be tested as a performance benchmark. the high efficiency dual - band characteristics allow the client device to be used in countries with different regulatory bands. cable and optional double - sided adhesive foam mounting allow s flexible placement. further performance enhancement can be done through tuning upon receipt of client s housing and board. 2. specification e lectrical communication system ism 868 ism 915 frequency (mhz) 868 ~ 870 902 ~ 928 average efficiency 0.87 0.77 average gain 2.3dbi 1.6dbi impedance 50 ohm polarization linear m echanical antenna length 90*55*0.8 mm connector ipex mhf e nvironmental operation temperature - 40c to 85c storage temperature - 40c to 85c
spe - 11 - 8 - 151 / a page 3 of 8 3. antenna characteristics 3.1. vswr 3.2. return loss pc.31 vswr 0 1 2 3 4 5 6 750 800 850 900 950 1000 ( mhz) pc.31 return loss -25 -20 -15 -10 -5 0 750 800 850 900 950 1000 ( mhz)
spe - 11 - 8 - 151 / a page 4 of 8 3.3. efficiency pc.31 radiation efficiency 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 750 800 850 900 950 1000 ( mhz)
spe - 11 - 8 - 151 / a page 5 of 8 4. antenna radiation patterns 4.1. antenna setup
spe - 11 - 8 - 151 / a page 6 of 8 4.2. radiation pattern x y z x -35 -30 -25 -20 -15 -10 -5 0 5 868mhz 915mhz -35 -30 -25 -20 -15 -10 -5 0 5 868mhz 915mhz
spe - 11 - 8 - 151 / a page 7 of 8 5. mechanical drawing (unit: mm)
spe - 11 - 8 - 151 / a page 8 of 8 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 all rights to this document an d the information contained herein. reproduction, use or disclosure to third parties without express permission is strictly prohibited. copyright ? taoglas ltd.
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