Embedded Antenna for Handheld/Portable Devices (Support Bluetooth & 802.11)

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

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

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

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

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

6. Antenna Design Parameters Tuning • 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

7. Antenna Design Parameters Impedance Matching • 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

8. Antenna Design Parameters VSWR • 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 Increase Your Wireless Connection Efficiency

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

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

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

12. Antenna Design Parameters Gain and Orientation • 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

13. Antenna Design Parameters Gain and Orientation Measurement • Anechoic Chamber • 3D 4  9  4(m3) room with shielded and absorber • pattern • 750-8GHz NEARSON Increase Your Wireless Connection Efficiency

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

15. Embedded Antenna Design Requirements • 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

16. 802.11 & Bluetooth Antenna Solution to Customer Requirement • 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

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

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

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

20. Antenna Coax Connector Transmit coax cable 802.11 & Bluetooth Antenna Assembly Analysis

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

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

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

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

25. 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 802.11 & Bluetooth Antenna Quality Assurance Route NEARSON Increase Your Wireless Connection Efficiency

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 Increase Your Wireless Connection Efficiency