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sdfghjyfguyfluyfgoiuytdSPE-15-8-071/B/WY Pa ge 1 of 15 SPECIFICATION Description : 6dBi 5.9GHz 12mm DSRC Ceramic Patch Antenna Features : 5850MHz to 5925MHz DSRC band For V2V and V2X Applications Dimensions: 12mm*12mm*4mm Peak Gain 6dBi Pin type Ceramic Patch Antenna Tuned on 70mm*70mm ground plane RoHS compliant
sdfghjyfguyfluyfgoiuytdSPE-15-8-071/B/WY Pa ge 2 of 15 1. Introduction The DCP.5900 is a 12*12*4 mm embedded ceramic DSRC Patch antenna. It is a high performance compact 6dBi directional antenna designed to operate at 5850 MHz to 5925 MHz for DSRC systems. DSRC (Dedicated Short Range Communications) is the communications media of choice for active safety V2V/V2X (Vehicle to Vehicle and Vehicle to Other) systems, primarily allocated for vehicle safety applications. DSRC supports high speed, low latency, short- range V2V/V2X wireless communications. The DCP.5900 ceramic patch antenna is mounted via pin and double-sided adhesive. This antenna has been tuned for a centre position on a 70mm *70mm ground plane and features world leading efficiency at 75%. The polarization has been designed to be circularly polarized to enable a more stable system signal strength on moving vehicles. For further optimization to customer specific device environments where positioning is off centre or a different ground-plane size, a custom tuned patch antenna can be supplied, subject to NRE and MOQ. Contact your regioinal Taoglas office for this, and for support to integrate and test this antenna’s performance in your device.
sdfghjyfguyfluyfgoiuytdSPE-15-8-071/B/WY Pa ge 3 of 15 2. Specification ELECTRICAL Operation Frequency 5850 MHz 5925 MHz Efficiency 75.25 % 75.19 % Peak Gain 5.32 dBi 5.89 dBi Average Gain -1.24 -1.24 Gain at Zenith 4.5 dBi typ 4.5 dBi typ VSWR 1.8 max Antenna Polarization RHCP Impedance 50 ohms MECHANICAL Ceramic Dimension 12 x 12 x 4 mm Pin Diameter 0.85 mm Pin Length 1.7mm Weight 2.1 g ENVIRONMENTAL Operation Temperature -40°C to 105°C Humidity Non-condensing 65°C 95% RH *All tests done on a 70mm*70mm ground plane.
sdfghjyfguyfluyfgoiuytdSPE-15-8-071/B/WY Pa ge 4 of 15 3. Antenna Characteristcs
3.1 Return Loss
3.2 Efficiency
sdfghjyfguyfluyfgoiuytdSPE-15-8-071/B/WY Pa ge 5 of 15
3.3 Average Gain
3.4 Peak Gain
sdfghjyfguyfluyfgoiuytdSPE-15-8-071/B/WY Pa ge 6 of 15
3.5 Axial Ratio
sdfghjyfguyfluyfgoiuytdSPE-15-8-071/B/WY Pa ge 7 of 15 4. Antenna Radiation Pattern
4.1 Measurement Setup
4.2 XY-Plane
Y X Z X Y
sdfghjyfguyfluyfgoiuytdSPE-15-8-071/B/WY Pa ge 8 of 15
4.3 XZ-Plane
4.4 YZ-Plane
Z X Z Y
sdfghjyfguyfluyfgoiuytdSPE-15-8-071/B/WY Pa ge 9 of 15 4.5 3D Radiation Patterns ( 5850 MHz) 4.6 3D Radiation Patterns ( 5925 MHz)
sdfghjyfguyfluyfgoiuytdSPE-15-8-071/B/WY Pa ge 10 of 15 5. Mechanical Drawing Unit:mm
sdfghjyfguyfluyfgoiuytdSPE-15-8-071/B/WY Pa ge 11 of 15 6. DCPD.12A EVB
sdfghjyfguyfluyfgoiuytdSPE-15-8-071/B/WY Pa ge 12 of 15 7. PCB Footprint Recommendation
sdfghjyfguyfluyfgoiuytdSPE-15-8-071/B/WY Pa ge 13 of 15 8. Packaging
sdfghjyfguyfluyfgoiuytdSPE-15-8-071/B/WY Pa ge 14 of 15 9. Application Note The DCP.5900 DSRC patch antenna is designed for 70mm*70mm ground plane center. Taoglas provides the experimental reference below if the antenna isn’t placed at the center of ground plane. Please refer to the return loss data shown in the graph below.
sdfghjyfguyfluyfgoiuytdSPE-15-8-071/B/WY Pa ge 15 of 15 Return Loss Antenna performance on different ground plane sizes is shown below. (The antenna locaton is at the center of ground plane) Return Loss