915 mhz antenna p/n 0915at43a0026 detail specification: page 1 of 3 recommended application ism part number explanation mechanical dimensions l w t +.004/-.008 +0.1/-0.2 a www.johansontechnology.com 4001 calle tecate ? camarillo, ca 93012 ? tel 805.389.1166 fax 805.389.1821 ver 1.4 2013 johanson technology, inc. all rights reserved 4/10/2013 2w max. (cw) 0.008 packing style termination style eg. 0915at43a0026e -40 to +85c 1,000 operating temperature reel quanity 0.20 part number 902 - 928 mhz -1.0 dbi typ. -4.0 dbi typ. 8.5 db min. recommended storage conditions 0.276 p/n suffix "high frequency ceramic solutions" 1 mm 7.00 0.20 +5 to +35c, humidity 45~75%rh frequency (mhz) peak gain (xz-total) average gain (xz-total) return loss 0915at43a0026 general specifications input power 0.012 mounting considerations i 0.079 eg. 0915AT43A0026S 0.020 eg. 0915at43a0026(e or s) 0.50 0.30 t & r 0.008 100% tin suffix = e or s suffix = s suffix = e bulk (loose) nc* 0.031 please consult factory 2.00 in tin / lead feeding point terminal configuration 2 function no. 0.80 l t a jti p/n for matching circuit: ** inductor (4.7nh):l - 07c4n7sv6t gnd plane gnd plane 2.0 5.5 8.0 1.0 5.0 7.0 2.5 0.5 0.5 pf 10 nh 4.7 nh * mount these devices with brown mark facing up. * line width should be designed to provide 50 ? impedance matching characteristics. with matching circuit ** matching circuit and component values will depend on pcb layout, thickness, material, etc. 1 2 matching circuit ** : see note 2 on next page! all units in: mm *this terminal must be soldered for anchoring and functionality purposes
915 mhz antenna p/n 0915at43a0026 detail specification: page 2 of 3 recommended application ism www.johansontechnology.com 4001 calle tecate ? camarillo, ca 93012 ? tel 805.389.1166 fax 805.389.1821 ver 1.4 2013 johanson technology, inc. all rights reserved "high frequency ceramic solutions" johanson technology, inc. reserves the right to make design changes without notice. please confirm the specifications mounting considerations ii and delivery conditions when placing your order. all sales are subject to johanson technology, inc. terms and conditions. 4/10/2013 johanson test board (orderable) p/n: 0915at43a0026 - eb1sma return loss (with matching) 19mm (can be shortened as needed, won't influence performance) 50? feed line (make sure proper calculation are applied to achieve this. 0.6 0.7 0.8 0.9 1.0 1.1 1.2 0.5 1.3 -40 -35 -30 -25 -20 -15 -10 -5 -45 0 freq, ghz db(s(1,1)) m1 m2 m3 m1 freq= db(s(1,1))=-11.217 902.0mhz m2 freq= db(s(1,1))=-11.807 928.0mhz m3 freq= db(s(1,1))=-43.257 915.0mhz yellow area - complete gnd and layer clearance free of metal below and above. ** note 2: it is recommended that the designer leave available slots for a "pi" (or shunt - series - shunt) network. the antenna matching network values above are used when antenna is mounted on johanson's evaluation board. the matching values on clients pcb will be different. go to: http://johansontechnology.com/tuning and see how to obtain the new values. if you need further help, contact our rf applications eng. team at: 40mm 9.5mm gnd plane gnd plane 20mm
915 mhz antenna p/n 0915at43a0026 detail specification: page 3 of 3 recommended application ism www.johansontechnology.com 4001 calle tecate ? camarillo, ca 93012 ? tel 805.389.1166 fax 805.389.1821 ver 1.4 2013 johanson technology, inc. all rights reserved "high frequency ceramic solutions" typical radiation performance @ 25 c using 0915at43a0026-eb1sma johanson technology, inc. reserves the right to make design changes without notice. please confirm the specifications and delivery conditions when placing your order. all sales are subject to johanson technology, inc. terms and conditions. 4/10/2013 typical radiation patterns ) ) xy - v / xy - h 180 270 0 90 x z y xy - cut scanning direction xy cut @915mhz vertical horizontal xz - v / xz - h yz - v / yz - h 180 270 0 90 x z y xz - cut scanning direction 180 270 0 90 x z y yz - cut scanning direction yz cut @915mhz vertical horizontal xz cut @915mhz vertical horizontal
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