ANT-2.45-CHP-T

Ultra Compact Chip Antenna Data Guide Table of Contents 1 1 2 2 2 3 3 4 4 5 6 8 9 10 12 13 Description Features Applications Ordering Information Electrical Specifications Footprints Pin Configuration Theory of Operation Layout Considerations Microstrip Details Assembly Considerations Test Boards VSWR Graphs Tape Dimensions Reel Dimensions Mismatch Conversion Table Ultra Compact Chip Antenna Data Guide Description The exciting ANT-***-CHP family is among the world’s smallest high-performance chip antennas. They are ideal for embedding in wireless products including Bluetooth, 802.11, Home RF, ZigBee and other popular standards. These tiny antennas use advanced Low Temperature Co-fired Ceramic (LTCC) technology and proprietary elements to achieve superior size and performance characteristics. The entire family is compatible with hand and reflow-assembly. Excellent electrical specifications, stability, and outstanding cost-effectiveness make 2.4 CHP Series antennas the logical choice for a wide variety of applications. 2.4 Figure 1: 2.4GHz Dimensions xxx Features • • • • • • • • • • • • Incredibly compact SMD package Superior LTCC technology 50Ω characteristic impedance Low loss Wide bandwidth Favorable linear polarization > Unity gain No external matching required Highly stable over temperature & time Hand and reflow-assembly compatible RoHS compliant Cost-effective – 1 – Figure 2: 868MHz and 916MHz Dimensions 2.45GHz 868MHz 916MHz Figure 3: Actual Sizes Revised 8/8/12 Applications • • • • • Footprints Bluetooth 802.11 ZigBee Wireless PCMCIA cards Telemetry • • • • Data collection Industrial process monitoring Compact wireless products External antenna elimination Ordering Information 0.130" 0.100" 0.040" 0.040" Ordering Information Figure 7: 868MHz and 916MHz Footprint Figure 6: 2.4GHz Footprint Part Number Description ANT-868-CHP-x 868Mhz Chip Antenna ANT-916-CHP-x 916MHz Chip Antenna ANT-2.45-CHP-x 2.45GHz Chip Antenna Pin Configuration x = "T" for tape/reel, "B" for bulk 1 All parts are RoHS compliant. Standard reel is 3,000pcs. (868/916MHz), 1,500pcs. (2.45GHz) Quantities less than reel size are supplied in bulk. Figure 8: Pin Configuration 2.4 2 Pin Descriptions Figure 4: Ordering Information Pin Number Electrical Specifications Specifications Parameter 0.630" 0.260" 2.45GHz 868MHz 916MHz 6.5(L) x 2.2(W) x 1.0(H) 16.0(L) x 3.0(W) x 1.7(H) 16.0(L) x 3.0(W) x 1.7(H) –40 to +85°C –40 to +85°C –40 to +85°C LTCC LTCC LTCC Center Frequency 2.45GHz 868MHz 916MHz Bandwidth 180MHz 10MHz 10MHz Description 1 Feed Termination This pin connects to the transmitter or receiver. 2 Solder Termination This pin is soldered down for physical support only. There is no electrical connection. Physical Dimensions (mm) Operating/Storage Temp Construction Figure 9: Pin Configurations Electrical Wavelength Pattern Polarization VSWR Maximum Gain Impedance Power Handling ¼-wave ¼-wave Omni-directional Omni-direction ¼-wave Omni-directional Linear Linear Linear ≤2.0 (Max.) ≤2.0 (Max.) ≤2.0 (Max.) +0.5dBi +0.5dBi +0.5dBi 50Ω 50Ω 50Ω 3W (Max.) 3W (Max.) 3W (Max.) Figure 5: Ordering Information – 2 – – 3 – Theory of Operation Microstrip Details The CHP Series antennas utilize Low Temperature Cofired Ceramic (LTCC) technology to embed the antenna element into a ceramic substrate. Advances in this technology have resulted in materials that are extremely stable over time and temperature, producing an antenna that is highly reliable across a wide range of applications. The high-frequency characteristics of this technology enable exceptional performance in a very small package. The construction techniques for LTCC devices lends itself well to favorable pricing in high volume. A transmission line is a medium whereby RF energy is transferred from one place to another with minimal loss. This is a critical factor, especially in high-frequency products like Linx RF modules, because the trace leading to the module’s antenna can effectively contribute to the length of the antenna, changing its resonant bandwidth. In order to minimize loss and detuning, some form of transmission line between the antenna and the module should be used unless the antenna can be placed very close (