표제지
목차
요약 5
I. 서론 9
II. 인체 통신용 재구성 빔 조향 안테나 11
1. 블루투스 헤드셋용 빔 조향 안테나 11
가. 개요 11
나. 설계 및 제작 11
다. 성능 측정 14
2. 의복 소재의 On/Off-body 통신용 재구성 빔 조향 안테나 22
가. 개요 22
나. 설계 및 제작 22
다. 성능 측정 25
3. 의복 소재의 상완부착용 빔 조향 안테나 37
가. 개요 37
나. 설계 및 제작 37
다. 성능 측정 40
III. 다중급전을 이용한 이중대역 빔 조향 안테나 44
1. 개요 44
2. 설계 및 제작 44
3. 성능 측정 46
가. 시뮬레이션 결과 46
나. 측정 결과 48
IV. 결론 51
참고문헌 52
Abstract 56
Table 2.1. Detailed dimensions of the proposed antenna 12
Table 2.2. Antenna states by two PIN diodes and DC biasing 13
Table 2.3. Summary of the measured antenna performances 18
Table 2.4. Summary of the measured peak SAR values 21
Table 2.5. Detailed dimensions of the proposed antenna 23
Table 2.6. Detailed dimensions of the loop antenna 24
Table 2.7. Measured performances of the proposed antenna and the loop antenna 28
Table 2.8. Detailed dimensions of the proposed antenna 38
Table 2.9. Summary of the measured antenna performances 43
Table 3.1. Detailed dimensions of the proposed antenna 45
Table 3.2. Summary of the simulated antennas performances 48
Table 3.3. Summary of the measured antennas performances 49
Fig. 2.1. Configuration of the proposed antenna 12
Fig. 2.2. DC biasing of the proposed antenna with two PIN diodes 13
Fig. 2.3. Photograph of the fabricated antenna 14
Fig. 2.4. Beam direction of the proposed antenna... 15
Fig. 2.5. Photograph of measuring the antenna in the headset 15
Fig. 2.6. Simulated reflection coefficients of the proposed antenna 16
Fig. 2.7. Measured reflection coefficients of the proposed antenna 16
Fig. 2.8. Simulated 3D radiation patterns of the proposed antenna 17
Fig. 2.9. Measured 2D radiation patterns of the proposed antenna 17
Fig. 2.10. Measured TRP of the proposed antenna 19
Fig. 2.11. Measured TIS of the proposed antenna 19
Fig. 2.12. Measuring SAR of the proposed antenna 20
Fig. 2.13. Summary of SAR standards for several country 20
Fig. 2.14. Measured SAR results (a) proposed antenna, (b) dipole antenna 21
Fig. 2.15. Configuration of the proposed antenna 23
Fig. 2.16. Configuration of the loop antenna 24
Fig. 2.17. Equivalent circuit of a packaged PIN diode... 24
Fig. 2.18. Measured reflection coefficient (S11) of the proposed antenna 25
Fig. 2.19. Measured reflection coefficient (S11) of the loop antenna 26
Fig. 2.20. Simulated 3D radiation patterns of the proposed antenna 26
Fig. 2.21. Simulated 3D radiation patterns of the loop antenna 26
Fig. 2.22. Measured 2D radiation patterns of the proposed antenna and the... 27
Fig. 2.23. Photographs of two fabricated antennas with the WLAN module... 29
Fig. 2.24. Meausred total radiated power (TRP) of two antennas 31
Fig. 2.25. Meausred total isotropic sensitivity (TIS) of two antennas 31
Fig. 2.26. Simulated SAR values of two antennas... 32
Fig. 2.27. The block diagram of measuring BER/SNR performances 33
Fig. 2.28. Measurement of BER/SNR performances in a chamber 34
Fig. 2.29. Measurement of BER/SNR performances in a smart home 34
Fig. 2.30. Measured BER/SNR in an antenna chamber (standstill) 35
Fig. 2.31. Measured BER/SNR in an antenna chamber (walking motion) 35
Fig. 2.32. Measured BER/SNR in a smart home (standstill) 36
Fig. 2.33. Measured BER/SNR in a smart home (walking motion) 36
Fig. 2.34. Configuration of the proposed antenna 38
Fig. 2.35. Fabricated skin-mimicking model... 39
Fig. 2.36. Measured reflection coefficients (S11) of the proposed antennas 40
Fig. 2.37. Simulated 3D radiation patterns of the proposed antenna... 41
Fig. 2.38. Measured 2D radiation patterns of the proposed antenna... 42
Fig. 2.39. Simulated SAR values of the proposed antenna... 43
Fig. 3.1. The fabricated antennas at three orders... 44
Fig. 3.2. Configuration of the proposed antenna 45
Fig. 3.3. Simulated reflection coefficients (S11) of the proposed antennas 46
Fig. 3.4. Simulated 3D radiation patterns of the proposed antennas... 47
Fig. 3.5. Measurement process of radiation patterns in a chamber 48
Fig. 3.6. Measured reflection coefficients (S11) of the proposed antennas 49
Fig. 3.7. Measured 2D radiation patterns of the proposed antennas... 50