Specification Part No. : SDDCP.5900.25.10.A.08 Product Name : Embedded 25*25*10.15mm Stacked SDARS & C-V2X Patch Antenna for OEM Automotive Applications Feature : SDARS & C-V2X Stacked patch antenna High Efficiency and Gain SDARS: LHCP 80.3% Efficiency, +5.4 dBi Gain 2332.5MHz C-V2X: RHCP 68.5% Efficiency, +3.5dBi Gain 5900MHz Dual Feed Patch Assembly Tuned for Centre Positioning on 70*70mm Ground Plane ThroughHole Mounting Pin Type Manufactured in an IATF 16949 certified facility Dimensions: 25x25x10mm RoHS & REACH Compliant SPE-18-8-066-C Page 1 of 16 1. Introduction The SDDCP.5900.25.10.A.08 is a passive embedded ceramic stacked patch antenna with both SDARS and C-V2X capabilities. Using a stacked dual patch assembly for both bands results in the most economical and space-efficient solution for demanding applications requiring both SDARS and C-V2X. The patch assembly is easy to integrate with an overall footprint size of just 25x25mm and sits at 10.15mm in height. The SDARS patch at 25mm*25mm is designed for use with Satellite Digital Audio Radio Services (SDARS). It features left-hand circular polarization, low in-band axial ratio, and excellent gain characteristics in the 2320 to 2345 MHz band, making it compatible with the most popular satellite radio services available in many new vehicles. It is extremely efficient with up to 80% efficiency at 2332.5MHz. The C-V2X patch at 12mm*12mm is used as the communications medium of choice for active safety V2V/C-V2X (Vehicle-to-Vehicle and Vehicle-to-Other) or DSRC (Dedicated Short Range Communications) systems. Primarily allocated for vehicle safety applications, C-V2X supports high-speed, low-latency, DSRC, V2V/C-V2X wireless communications. The C-V2X patch also has left hand circular polarization and nearly 70% efficiency at 5900MHz. A typical use case would include utilizing the stacked patch in shark fin style external automotive roof mounted antennas. This antenna has been tuned and tested on a 70 x 70 mm ground plane. Custom tuning services can be provided for further optimization to customer-specific device environments. Note that certification of your device and/or the antenna may be required by certain Satellite Radio providers. Further engineering may be needed to meet their requirements. Contact your regional Taoglas sales office for support. SPE-18-8-066-C Page 2 of 16