WILEY ANTENNAS FOR PORTABLE DEVICES phần 1 docx

... Phone + data 15 75 MHz GPS Geolocation 17 10 18 80 MHz 18 00 MHz Phone + data 18 50 19 90 MHz 19 00 MHz Phone + data 19 00– 217 0 MHz 210 0 MHz Phone + data 17 10– 217 0 MHz (18 00, 19 00 and 210 0 MHz) High ... on Bandwidth 14 9 4 .10 .2 A WWAN Dualband Example 15 2 4 .11 Ultra-Wide Band Antennas 15 7 4 .11 .1 Description of the UWB Antenna 15 9 4 .11 .2 UWB Antenna Measureme...

Ngày tải lên: 07/08/2014, 21:20

... millimetres. 268 Antennas for UWB Applications –30 –25 –20 15 10 –5 0 –30 –25 –20 15 10 –5 0 l s = 11 mm = 12 mm = 13 mm |S 11 |, dB |S 11 |, dB 2 3 4 5 6 7 8 9 10 11 Frequency, GHz 2345678 910 11 Frequency, ... 289 Keep-out zone 20 Laptop computer 4, 5, 7, 50, 11 3, 12 4, 12 6, 13 4, 13 7, 14 8–9, 15 7–9, 16 1–3, 2 31, 270 LCD 11 4 LCD treatment 11 8 Link bu...

Ngày tải lên: 07/08/2014, 21:20

... with a chassis length of 12 0 mm is double that for a length of 90 mm. Handset antenna bandwidth as a function of chassis length 0 2 4 6 8 10 12 14 16 18 20 50 75 10 0 12 5 15 0 17 5 200 Chassis length ... 25 0.0 50.0 10 0.0 15 0.0 200.0 250.0 70 75 80 85 90 95 10 0 10 5 11 0 11 5 12 0 PCB Length [mm] htdiwdnabevitaleR -3dB BW -6dB BW Figure 2.7 Relationship between leng...

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... end. 2.8 The RF Performance of Typical Handsets 53 17 00 17 50 18 00 18 50 19 00 19 50 2000 2050 210 0 215 0 220 0 10 20 30 40 50 60 70 80 90 10 0 834820 848 862 876 890 904 918 932 946 960 0 10 20 30 40 50 60 70 80 90 10 0 Figure ... Transactions on Antennas and Propagation, 50 (2002), 14 33 14 44. [15 ] Z. Ying, Ericsson, 19 96, US Patent 6 212 102 (WO9 815 028). [16 ] Z....

Ngày tải lên: 07/08/2014, 21:20

... dB) 0.0 1. 0000 0.0000 − 10 .0 0. 316 2 0.9000 −0.4576 −0.5 0.94 41 0 .10 87 −9.6357 11 .0 0.2 818 0.9206 −0.3594 1. 0 0.8 913 0.2057 −6.8683 12 .0 0.2 512 0.9369 −0.2830 1. 5 0.8 414 0.29 21 −5.3454 13 .0 ... 10 0 RFID Tag Antennas Frequency, MHz 10 11 12 13 14 15 16 17 Inductance, μH 0 1 2 3 Free space d = 1 mm d = 5 mm Antenna coil Metal plate d Figure ......

Ngày tải lên: 07/08/2014, 21:20

... 2500 2500 16 4 1. 11 1 .11 MdispSideTopLeft 25 01 2495 15 4 1. 10 1. 08 MdispSideLeftTop 2483 2475 16 6 1. 10 1. 08 MdispSideLeftCen 2470 2475 16 4 1. 18 1. 17 MdispSideLeftBot 2490 2480 14 7 1. 20 1. 17 MdispBackLeftTopVer ... 2429 2425 11 9 1. 10 1. 08 MdispBackMidTopVer 2428 2425 10 0 1. 17 1. 16 MdispBackMidCenVer 2427 2425 99 1. 17 1. 16 MdispBackMidBotVer 2429 2...

Ngày tải lên: 07/08/2014, 21:20

... suitable for other portable devices. However, the effects of environments, where the antennas are installed, on the performance of the embedded antennas should be carefully re-examined. 4 .11 .1 Description ... coupled elements cover the high 4 .10 Antennas for Wireless WAN Applications 15 1 Table 4.5 Antenna length and feed point for a given height. H (mm) 824–894 MHz 18 50...

Ngày tải lên: 07/08/2014, 21:20

... 0497 1. 67 10 −5 Gall bladder 576206 10 30 3500 0600 8.30 10 −6 Bone (cortical) 4482 10 10 38 13 00 0436 4.20 10 −7 Cartilage 38 81 76 10 97 13 00 0436 4.20 10 −7 Ligaments 43 11 68 12 20 3500 ... 0600 8.30 10 −6 Intestine (large) 539204 10 43 3500 0600 1. 33 10 −5 Intestine (small) 5443 17 10 43 3500 0600 1. 67 10 −5 Pancreas 57 21 97 10 45 3500 04 41 1.0...

Ngày tải lên: 07/08/2014, 21:20

... Biomedical Engineering, 30 (19 83), 797–805. 216 Antennas for Wearable Devices 0 2 4 -5 0 5 x 10 -4 edutilpmA 0 2 4 -5 0 5 x 10 -4 0 2 4 -5 0 5 x 10 -4 Time (nsec) edutilpmA 0 2 4 -1 0 1 2 x 10 -4 Time (nsec) Measured ... Techniques,52 (2004), 19 87 19 91. [14 ] H.H. Pennes, Analysis of tissue and arterial blood temperatures in the resting human forearm. Journal of Appli...

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... 0.75 1 1.33 2 4 20 Bandwidth, % 36 42 51 62 63 >80 76 36 5 F 1 , GHz 208 1 86 1 67 1 52 1 49 1 36 1 32 1 30 1 25 F 2 , GHz 1 69 1 66 1 64 1 61 158 1 61 164 1 64 1 70 F 3 , GHz 1 64 1 66 1 65 ... 0° E θ , φ = 90° E φ , φ = 90° 10 0 –90° 3 GHz θ = 0° (10 dBi) 18 0° 90° 10 –90° θ = 0° (10 dBi) 18 0° 90° 5 GHz 10 0 –90° θ = 0° (10 dBi) 18 0° 90° 9 GHz 0 –90...

Ngày tải lên: 07/08/2014, 21:20