High Frequency Ceramic Solutions 2.4 GHz SMD, Above Metal, Low Profile Mini Chip Antenna P/N 2450AT42E010B This antenna will generally have a metal layer directly underneath for proper operation, exceptions may apply. Detail Specification: 10/28/2021 Page 1 of 9 General Specifications Part Number 2450AT42E010B Frequency (MHz) 2400 - 2480 EVB1* EVB2* Return Loss (dB) 2.7 min. 3.5 min. Peak Gain (dBi typ.) -1.0 (YZ-V) -1.0 (YZ-V) Average Gain (dBi typ.) -3.5 (YZ-V) -5.0 (YZ-V) Antenna mounts Impedance () 50 directly above or Power Capacity (W) 2 max. (CW) below the metal layer Reel Quantity (pcs./reel) 2,000 of PCB. No antenna Operating Temp -40 to +85C clearance required ever again +5 to +35C Recommended Storage Conditions and Period for Humidity 45 - 75% RH unused Product on T&R 18 months max. *Evaluation boards 1 and 2 are meant to demonstrate the difference in performance achievable with different substrate thicknesses. This antenna was designed in mind for small coin cell, wearable, IoT, 2.4 BLE, 802.11, ISM, Zigbee, etc. applications in close-range networks where metal or a battery/display covers the entire length or side of the PCB or encasement must be present directly under the antenna and there s no room for usual/typical antenna metal clearance. Part Number Explanation Bulk (loose pcs.) Suffix = S E.g. 2450AT42E010BS Packing Style T & R Suffix = E E.g. 2450AT42E010BE P/N Suffix Evaluation Board 1 2450AT42E010B-EB1SMA (comes with 1 female SMA connector) Evaluation Board 2 2450AT42E010B-EB2SMA (comes with 1 female SMA connector) Mechanical Specifications Terminal Configuration Feeding Point In mm 1 1 L 0.197 0.008 5.00 0.20 2 NC W 0.079 0.008 2.00 0.20 GND W 3 GND T 0.059 0.008 1.50 0.20 4 L c 0.020 0.008 0.50 0.20 a Top View b 0.059 0.008 1.50 0.20 0.012 max 0.30 max C b b T a 1 Make sure to have Pin 2 soldered to its PCB land pad but not Bottom View Side View connected to GND or input, it must be NC (or floating). Johanson Technology, Inc. reserves the right to make design changes without notice. All sales are subject to Johanson Technology, Inc. terms and conditions. High Frequency Ceramic Solutions 2.4 GHz SMD, Above Metal, Low Profile Mini Chip Antenna P/N 2450AT42E010B This antenna will generally have a metal layer directly underneath for proper operation, exceptions may apply. Detail Specification: 10/28/2021 Page 2 of 9 Mounting Consideration 1: Evaluation Board 1 (Thickness = 1.5mm) Top View Bottom View 3mm Ground 6.26mm Matching circuit 30mm 50 Feed Line Ground Plane (where other SMD components will be mounted) p/n: 2450AT42E010B-EB1SMA 50mm Want the layout file Send us a message at: