Preston Cinema Systems TR433 2.4 GHz Transceiver User Manual Antenna 2010 Page 1

Preston Cinema Systems Inc 2.4 GHz Transceiver Antenna 2010 Page 1

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Antenna data sheet

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1. Users Manual
2. Antenna data sheet

Antenna data sheet

12400 –2483.5 MHz Single Band Antenna (802.11 b/g, includes frequencies of Bluetooth, ZigBee, and Wi-Fi products)Antenna SolutionsPart Number: 1513504-1 Product FactsWide bandwidth and highgain in a compact size.Enhanced hemisphericalpattern improves RF linkreliability of portabledevices. Available in tape & reel.RoHS compliantRecommendationsMinimum or no matchingcircuits required. Bandwidth and performanceis dependent on groundplane size. Suggestedminimum ground planelength from the antennafeed is 30 mm.PCB ground is to be on toplayer.Test Orientation in Free Space VSWRAzimuth Elevation EfficiencySpecificationsFrequency Range (MHz) 2400 –2483.5Peak Gain + 2 dBi VSWR < 2.5:1 Reflow Temperature 275°C maximumPolarization LinearPower Handling 10 Watt cwFeed Point Impedance 50 Ohms unbalanced Size 16.00 mm dia. x 6.05 mmWeight < 1 g.Mounting Surface-mount technology. See page 2 Keep Out Area See diagram on page 2Legend:2460 MHzLegend:2460 MHzCatalog 4-1773459-1 Dimensions are in inches and Dimensions are shown for USA: 1-800-522-6752 UK: +44 (0) 800-267666Revised 03-11 millimeters unless otherwise reference purposes only. Canada: 1-905-475-6222 Netherlands: +31 (0) 73-6246-999sspecified. Values in brackets Specifications subject Germany: +49 (0) 6251-133-1999 China: +86 (0) 400-820-6015www.te.com are metric equivalents. to change. For other country number go to te.com/supportcenterwww.antenna.te.com

– 1 –Revised 1/15/15Product DescriptionThe RCS Series is ideally suited for products requiring an attractive, yet compact, ¼-waveantenna in a right-angle form factor. The antennasattach via a standard SMA or Part 15 compliant RP-SMA connector.Features• Reduced height helical whip• Right-angle mount• Excellent performance• Omni-directional pattern• Fully weatherized• SMA or Part 15 compliant RP-SMA connector• Use with plastic* or metal enclosures* Requires proximity ground planeElectrical SpecicationsCenter Frequency: 2.45GHzRecom. Freq. Range: 2.35–2.50GHzWavelength: ¼-waveVSWR: < 1.9 typical at centerPeak Gain: –0.2dBiImpedance: 50-ohmsOper. Temp. Range: –20°C to +85°CConnector: SMA or RP-SMAElectrical speciﬁcations and plots measured on 10.16 cm x 10.16 cm (4.00" x 4.00") reference ground planeANT-2.4-CW-RCS-xxx Data Sheet byOrdering InformationANT-2.4-CW-RCS (with RP-SMA connector)ANT-2.4-CW-RCS-SMA (with SMA connector)9.4 mm(0.37")8.5 mm(0.33")7.0 mm(0.28")45.0 mm(1.77")53.5 mm(2.11")8.0 mm(0.31")

– 2 –byData Sheet ANT-2.4-CW-RCS-xxxVSWR GraphWhat is VSWR?The Voltage Standing Wave Ratio (VSWR) is a measurement of how well an antenna is matched to a source impedance, typically 50-ohms. It is calculated by measuring the voltage wave that is headed toward the load versus the voltage wave that is reﬂected back from the load. A perfect match will have a VSWR of 1:1. The higher the ﬁrst number, the worse the match, and the more inefﬁcient the system. Since a perfect match cannot ever be obtained, some benchmark for performance needs to be set. In the case of antenna VSWR, this is usually 2:1. At this point, 88.9% of the energy sent to the antenna by the transmitter is radiated into free space and 11.1% is either reﬂected back into the source or lost as heat on the structure of the antenna. In the other direction, 88.9% of the energy recovered by the antenna is transferred into the receiver. As a side note, since the “:1” is always implied, many data sheets will remove it and just display the ﬁrst number. How to Read a VSWR GraphVSWR is usually displayed graphically versus frequency. The lowest point on the graph is the antenna’s operational center frequency. In most cases, this will be different than the designed center frequency due to fabrication tolerances. The VSWR at that point denotes how close to 50-ohms the antenna gets. Linx speciﬁes the recommended bandwidth as the range where the typical antenna VSWR is less than 2:1. CounterpoiseQuarter-wave or monopole antennas require an associated ground plane counterpoise for proper operation. The size and location of the ground plane relative to the antenna will affect the overall performance of the antenna in the ﬁnal design. When used in conjunction with a ground plane smaller than that used to tune the antenna, the center frequency typically will shift higher in frequency and the bandwidth will decrease. The proximity of other circuit elements and packaging near the antenna will also affect the ﬁnal performance. For further discussion and guidance on the importance of the ground plane counterpoise, please refer to Linx Application Note AN-00501: Understanding Antenna Speciﬁcations and Operation.VSWR Reflected Power3:12:11:125%11%0%2450MHz 2550MHz2350MHz1.394

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