Vol.02 - May 27 2014 Patch and Chip Antennas for GPS/Glonass Applications Until recently the GPS, Global Positioning System, designed and maintained by the US Government (fully operational since1995) was the only space-based satellite navigation system with global coverage for civil, commercial and military applications. However, as early as 2012, Glonass, the Russian satellite navigation system developed by the Russian Government offers similar global coverage service, and further increasing the accuracy, reliability and synchronization speed of the existing system. Other similar navigation systems under development are Galileo (Europe), Beidou/Compass (China) and IRNSS (India). GPS GLONASS Patch antennas for telematics & car shark fins Chip antennas for smart phones & table PCs Figure 1: Typical GPS/Glonass application The two fully operational navigation systems operate at 1575Mhz/GPS and 1602Mhz/Glonass providing full world coverage. All of todays satellite receivers are now able to receive a stronger and more reliable signal from the combined satellite constellation (48 satellites total). Yageo is offering a wide range of antennas, both patch and chip, supporting all existing satellite navigation systems. Ceramic chip antennas are small, compact, and highly recommended for space-saving such as smart phones, tablet, watches or other portable applications. Ceramic patch are larger but better performance antennas and are most suitable for telematics, eCall (emergency call), asset/fleet management tracking systems in automobiles/transportation and other applications. Featuring low-profile, high gain, wide-bandwidth, Yageo GPS/Glonass antennas are easy to design and integrate into any small, portable applications. Yageo circular polarized patch antenna (PN: ANT2525B00DT1516A) and linear polarized chip antenna (PN: ANT5320LL14R1575A) are dual-band antennas supporting GPS and Glonass applications. Additionally Yageo provides professional technical design-in services. Antenna Measurements Below, some typical field measurements for a Yageo dual-band, GPS/Glonass patch antenna are shown. Key parameters such as return loss, gain, resonant frequency and radiation pattern are measured for 1575MHz/GPS and 1602MHz/Glonass. 1 1.5669880 GHz 2 >3 4 5 1.5750000 GHz 1.5900000 GHz 1.6020000 GHz 1.6111954 GHz -10.000 dB -34.062 dB -11.030 dB -32.938 dB -10.142 dB Figure 2: Return loss for Yageo GPS/Glonass patch antenna 2D x-z plane pattern 2D y-z plane pattern Figure 3: Radiation patterns of 1575 MHz for Yageo GPS/Glonass patch antenna 2D x-z plane pattern 2D y-z plane pattern Figure 4: Radiation patterns of 1602 MHz for Yageo GPS/Glonass patch antenna Specifications ˙Chip Antenna: - Size : 5.3X2.0mm, 3.2x1.6mm, 8.0x1.0mm GPS , dual band of GPS&Glonass SMD type Omni-directional Linear polarization Target Applications: mobile phone, table, etc. ˙Patch Antenna: - Size: 25x25mm,18x18mm, 15x15mm, 12x12mm, 10x10mm GPS , dual band of GPS&Glonass SMD type High directivity, selectivity Right hand circular polarization (RHCP) Target Application : Automotive, tracking asset, fleet tracking, eCall, industrial computing, etc Antenna Measurements Similarly to other antenna suppliers, Yageo could offer a wide range of embedded antenna solutions for customers based on their mechanical designs. Application Antenna Chip Antenna Dimension Feed Type Yageo 5.3x2.0 mm SMD ANT5320LL14R1575A 3.2x1.6 mm SMD ANT3216LL15R1575A 25x25 mm 18x18 mm GPS Patch Antenna 15x15 mm 13x13 mm 12x12 mm GPS + Glonass Chip Antenna Patch Antenna SMD Pin SMD Pin SMD ANT2525B00BT1575A Taogloas GLA.01 W3011 SGP.25C ANT2525B00CT1575A GP.1575.25.2.A.02 ANT2525B00DT1575A GP.1575.25.4.A.02 ANT1818B00BT1575A SGP.18C ANT1818B00CT1575A GP.1575.18.2.A.02 ANT1818B00DT1575A GP.1575.18.4.A.02 ANT1515B00BT1575A SGP.15A Pin ANT1515B00DT1575A GP.1575.15.4.B.02 Pin ANT1313B09DT1575A SMD ANT1212B00BT1575A Pin Pulse W3213 SGP.12A ANT1212B00DT1575A GP.1575.12.4.A.02 5.3x2.0 mm SMD ANT5320LL14R1575A 25x25 mm Pin ANT2525B00DT1516A CGGP.25.4.A.02 18x18 mm Pin ANT1818B00DT1516A CGGP.18.4.C.02 15x15 mm Pin ANT1515B00BT1516A Yageo, Your Partner for Wireless Components and Modules Yageo offers a wide range of wireless components, namely antennas and RF components/modules supporting most current technologies. With a broad spectrum covering 125Khz to 5.8Ghz range, Yageo antennas, filters, diplexers and baluns are designed to support a wide variety of applications, from automotive/transportation, industrial/home automation, medical, and POS, to most popular such as smart meters, telematics and asset tracking. Other upcoming GPS based technologies such as E-call, OnSTAR, ERA/Glonass, SDARS, tollcollect ...are also supported with numerous passive/active antennas and RF components. With a strong local sales and technical support, Yageo is your best partner for your wireless designs. Related Links Chip Antenna Datasheet - 1 / 2 Patch Antenna Datasheet - 1 / 2 Wireless Brochure Download Copyright © 2014 Yageo Corporate, All rights reserved Yageo Distributors eNews