SPECIFICATION IS.05 915MHz Hercules ISM Band Antenna Part No. : IS.05.B.301111 Product Name : 915 MHz Hercules ISM Band Antenna Screw-mount (Permanent mount) Features : Low profile-Height 29mm and diameter 49mm Heavy duty screw mount UV and Vandal resistant PC housing IP67 & IP69K – Waterproof Standard cable is 3m RG174 with SMA(M)connector fully customizable ROHS Compliant SPE-13-8-019/C/EZ Page 1 of 18 1. INTRODUCTION The 915MHz Hercules ISM Antenna is a high performance steel thread-mount ISM antenna for external use on vehicles and outdoor assets worldwide. Omni-directional high gain across all bands ensures constant reception and transmission. Durable UV resistant PC housing is resistant to vandalism and direct attack. At only 29 mm height it complies with the latest EU height restrictions directives for roof-mounted objects, with a diameter of 52 mm. Designed to not catch on tree-branches. The antenna can be mounted on metal structures. 2. SPECIFICATION ELECTRICAL Standard ISM Band (MHz) 915 Frequency (MHz) 902-928 Cable Length (m) 0.3 1.0 2.0 3.0 5.0 Return Loss (dB) -13.68 -13.86 -15.16 -14.61 -17.54 Efficiency (%) 27.49 44.13 38.36 27.09 21.10 Gain (dBi) 1.15 2.75 1.85 0.25 Polarization 3.14 Linear Impedance 50 ohms Max Input Power 10 watts VSWR <2.5:1 *Note: The return loss, efficiency and gain in the above table, were measured on 30x30 cm metal plate with RG174 cable. For a specific case performance refers to the below plots. SPE-13-8-019/C/EZ Page 2 of 18 MECHANICAL Dimensions Height = 29 mm and Diameter = 52 mm Cable length 3m RG174 – Fully Customable Connector SMA-Male – Fully Customable Casing UV Resistant PC Base and Thread Nickel plated steel Thread Diameter 18 mm Weather proof gasket Rubber Sealant Rubber Stopper Protection ENVIRONMENTAL IP67 & IP69K Corrosion 5% NaCl for 48hrs - Nickel plated steel base and thread Temperature Range -40°C to +85°C Thermal Shock 100 cycles -40°C to +85°C Humidity Non-condensing 65°C 95% RH Shock (Drop Test) 1m drop on concrete 6 axes Cable Pull Recommended Torque Setting for Mounting 8 Kgf Maximum Torque Setting for Mounting 24.5N∙m 29.4N∙m *Note: Specifications may be subject to change SPE-13-8-019/C/EZ Page 3 of 18 3. TEST SET UP Z X Y Figure 1. IS.05 Antenna test set up in free space, 30x30 cm metal plate and 60x60 cm metal plate, R&SZVL6 VNA (left) and R&S4100 CTIA 3D Chamber (Right). SPE-13-8-019/C/EZ Page 4 of 18 4. ANTENNA PARAMETERS 4.1 Return Loss Figure 2. Return Loss of the 915MHz Hercules ISM antenna in free space Figure 3. Return loss of the 915MHz Hercules ISM antenna on 30x30 cm metal plate. SPE-13-8-019/C/EZ Page 5 of 18 Figure 4. Return loss of the 915Mhz Hercules ISM antenna on 60x60 cm metal plate. 4.2 Efficiency Figure 5. Efficiency of the 915MHz Hercules ISM antenna in free space. SPE-13-8-019/C/EZ Page 6 of 18 Figure 6. Efficiency of the 915MHz Hercules ISM antenna on 30x30 cm metal plate. Figure 7. Efficiency of the 915MHz Hercules ISM antenna on 60x60 cm metal plate. SPE-13-8-019/C/EZ Page 7 of 18 4.3 Gain Figure 8. Gain of the 915MHz Hercules ISM antenna in free space. Figure 9. Gain of the 915MHz Hercules ISM antenna on 30 cm metal plate. SPE-13-8-019/C/EZ Page 8 of 18 Figure 10. Gain of the 915MHz Hercules ISM antenna on 60 cm metal plate. 4.4. Radiation Pattern Figure 11. Radiation pattern at 900 MHz, Figure 1 as reference (dB), with 2m RG174 cable and free space. SPE-13-8-019/C/EZ Page 9 of 18 Figure 12. Radiation pattern at 915 MHz, Figure 1 as reference (dB), with 2m RG174 cable and free space. Figure 13. Radiation pattern at 930 MHz, Figure 1 as reference (dB), with 2m RG174 cable free space. SPE-13-8-019/C/EZ Page 10 of 18 Figure 14. Radiation pattern at 900 MHz, Figure 1 as reference (dB), with 2m RG174 cable and 30x30 cm metal plate. Figure 15. Radiation pattern at 915 MHz, Figure 1 as reference (dB), with 2m RG174 cable and 30x30 cm metal plate. SPE-13-8-019/C/EZ Page 11 of 18 Figure 16. Radiation pattern at 930 MHz, Figure 1 as reference (dB), with 2m RG174 cable 30x30 cm metal plate. Figure 17. Radiation pattern at 900 MHz, Figure 1 as reference (dB), with 2m RG174 cable and 60x60 cm metal plate. SPE-13-8-019/C/EZ Page 12 of 18 Figure 18. Radiation pattern at 915 MHz, Figure 1 as reference (dB), with 2m RG174 cable and 60x60 cm metal plate. Figure 19. Radiation pattern at 930 MHz, Figure 1 as reference (dB), with 2m RG174 cable 60x60 cm metal plate. SPE-13-8-019/C/EZ Page 13 of 18 5. DRAWING SPE-13-8-019/C/EZ Page 14 of 18 6. INSTALLATION SPE-13-8-019/C/EZ Page 15 of 18 7. PACKAGING SPE-13-8-019/C/EZ Page 16 of 18 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 and the information contained herein. Reproduction, use or disclosure to third parties without express permission is strictly prohibited. Copyright © Taoglas Ltd. SPE-13-8-019/C/EZ Page 17 of 18 SPE-13-8-019/C/EZ Page 18 of 18