2. 1 Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11) NEARSON Inc. 7432 Alban Station Blvd., Suite B226 Springfield, VA 22150 Tel: 703-913-5552 Fax: 703-913-5553 URL: www.nearson.comwww.nearson.com Email: sales@nearson.comsales@nearson.com Increase Your Wireless Connection Efficiency

3. 2 Embedded Inside Story Customization to Customer Specific Requirements; Optimal Performance at Reduced Cost; Built-in Flexibility for Future Design Changes; State of the Art Design and Production Capabilities NEARSON Increase Your Wireless Connection Efficiency

4. 3 Why Embedded ? Size Cost Security Cosmetic/Aesthetic Technology Advantages NEARSON Increase Your Wireless Connection Efficiency

5. 4 Embedded Antenna Applications PAMCIA Card for Wireless Modem Wireless LAN Bluetooth Palm Computer(PDA) Technology Bar Code Scanner Point of Sale RFID NEARSON Increase Your Wireless Connection Efficiency

6. 5 Embedded Antenna Basic Guidelines Tuning Impedance Matching VSWR Gain and Orientation NEARSON Design Parameters Increase Your Wireless Connection Efficiency

7. 6 Antenna Design Parameters Antennas must be tuned to correct operating frequency band Bluetooth and 802.11 operate at 2.4GHz ~ 2.5GHz, ISM band NEARSON Increase Your Wireless Connection Efficiency Tuning

8. 7 Antenna Design Parameters 50  input impedance of antenna matches to 50  output impedance of RF module If impedance mismatching, a reflected voltage cause instability of RF module and poor power transfer from RF module NEARSON Increase Your Wireless Connection Efficiency Impedance Matching

9. 8 Antenna Design Parameters Return Loss is a measurement of reflection General specification is VSWR  2.0 power When VSWR = 2 Return Loss = -10dB, General specification of return loss is  -10dB Voltage Standing Wave Ratio (VSWR) is a ratio of the max. and min. voltage, which is the combination of inserting and reflecting voltage wave NEARSON VSWR Increase Your Wireless Connection Efficiency

10. 9 Antenna Design Parameters NEARSON Increase Your Wireless Connection Efficiency VSWR & Return Loss Plot

11. 10 Antenna Design Parameters Use Network Analyzer Agilent 8753ES 300k to 6GHz NEARSON VSWR & Return Loss Measurement Increase Your Wireless Connection Efficiency

12. 11 VSWR And Radiation Pattern R/S ZVC 300kHz ~ 8GHz Network Analyzer Agilent 8753D Network Analyzer NEARSON Increase Your Wireless Connection Efficiency Testing Equipment

13. 12 Antenna Design Parameters Gain is the ability of radiating and receiving of antenna Maximize gain –Minimize losses in feed line –Use good electrically materials such as Good conductor Low loss polymers –Minimize impedance mismatch losses Well VSWR or return loss By radiation pattern measurement to find out real gain value and orientation of antenna NEARSON Increase Your Wireless Connection Efficiency Gain and Orientation

14. 13 Antenna Design Parameters Anechoic Chamber –3D 4  9  4(m 3 ) room with shielded and absorber –pattern –750-8GHz NEARSON Gain and Orientation Measurement Increase Your Wireless Connection Efficiency

15. 14 Radiation Pattern Testing Equipment Horn Antenna : DRH-0118 NEARSON Increase Your Wireless Connection Efficiency

16. 15 Embedded Antenna Omni Function When Open or Close Built Inside of Casing; No Extra Portion out of Body Smaller Size to Fit Limited Space Consider Al-Mg Casing Application NEARSON Increase Your Wireless Connection Efficiency Design Requirements

17. 16 802.11 & Bluetooth Antenna Keep Free Space Surround Antenna to Derive Omni Function When LCD Open or Close To Get Smaller Size with Different Design or Change Substrate Material Like Ceramic Keep Antenna out of Al-Mg Casing NEARSON Increase Your Wireless Connection Efficiency Solution to Customer Requirement

18. 17 Antenna Placement and Function 1. Bluetooth 2. Wireless Lan 802.11 802.11 mini pci module usually has 2 RF input and bluetooth has 1 NEARSON Increase Your Wireless Connection Efficiency

19. 18 802.11 & Bluetooth Antenna NEARSON Increase Your Wireless Connection Efficiency Target Position

20. 19 802.11 & Bluetooth Antenna Open H Open E Close E Close H NEARSON Increase Your Wireless Connection Efficiency Test Function

21. 20 802.11 & Bluetooth Antenna Antenna Transmit coax cable Coax Connector AntennaCoax cableCoax connector Type Gain(dBi) Max. ref. Diameter (Φmm) Attenuation (dB/m)2.5G Brand or type P/NSize ref. Air dipole2.5 0.855.8 Hirose Murata UFL-LP-040 MXTK92---- 5x3x2.5mm 5x2.8x2.0mm PCB dipole2 1.133.3MMCX RMCX-- 10x6x5mm PCB μ-strip1.6 1.322.4Hirose U.FL-LP-066 5x3x2.5mm PCB μ-strip1.8 1.322.4Hirose U.FL-LP-066 5x3x2.5mm PCB μ-strip2.1 1.322.4Hirose U.FL-LP-066 5x3x2.5mm PCB μ-strip1.5 1.322.4Hirose U.FL-LP-066 5x3x2.5mm PCB μ-strip1.3 1.322.4Hirose U.FL-LP-066 5x3x2.5mm PIFA2.3 1.322.4Hirose U.FL-LP-066 5x3x2.5mm Assembly Analysis

22. 21 802.11 & Bluetooth Antenna Customer inquiry RD project team Antenna type decide Antenna mock up Antenna SWR return loss ckeck Antenna pattern test Objective pattern test Antenna Spec. finalize Antenna sample submit NEARSON Increase Your Wireless Connection Efficiency Design Route

23. 22 802.11 & Bluetooth Antenna RD project team Mass production meeting Standard operation procedure set up Working instruction set up Antenna pilot run Antenna Mass prod. Antenna SWR & return loss FQA 100% test Antenna shipment Production equipment set up NEARSON Increase Your Wireless Connection Efficiency Production Route

24. 23 Mass Production Process Testing Equipment Semi-automatic Stripper : Schleuniger MP 257 Automatic Stripper : Schleuniger PS9500/RS Accurate Coaxial Cable Cover Strip NEARSON Increase Your Wireless Connection Efficiency

25. 24 Mass Production Process Testing Equipment Agilent 8714 Network Analyzer Testing and Qualify Each Antenna’s VSWR NEARSON Increase Your Wireless Connection Efficiency

26. 25 802.11 & Bluetooth Antenna RD project team QC project meeting Antenna QC flow chart Antenna component IQC Antenna SWR return loss IPQC check Antenna dimension check Antenna production improvement Antenna defect analysis Antenna shipment with QA report NEARSON Increase Your Wireless Connection Efficiency Quality Assurance Route

27. 26 NEARSON design teams utilized state of the art computer simulation technology to speed up the development cycle thus reducing production-manufacturing turn around time. Our engineers work closely with our customers in all aspects of design, implementation, and production of our customers embedded antenna solutions. NEARSON design teams utilized state of the art computer simulation technology to speed up the development cycle thus reducing production-manufacturing turn around time. Our engineers work closely with our customers in all aspects of design, implementation, and production of our customers embedded antenna solutions. NEARSON Increase Your Wireless Connection Efficiency