Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/~phil/rfi/antennas/ARA_LPD-118_measurements.pdf Дата изменения: Thu Sep 3 23:00:08 2015 Дата индексирования: Mon Apr 11 16:45:21 2016 Кодировка: Поисковые слова: massive stars

Antenna Res ear ch

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LOG PERIODIC DIPOLES 20 MHz - 18 GHz TRANSMIT - RECEIVE
LOCATION OF ACTIVE REGION

LPD - 2010/A - Typical Antenna Factor and Gain
D (IN.) 50 D ACTIVE REGION

E-F i el d Antenna F actor f or Log-Peri odi c Di pol e Array

LPD-2 0 1 0 /A and LPD-2 0 1 0 /AK L ocati on of Acti ve R egi on: D= 8624 - 2 1 . 4 3 i n. f f = F r equency i n MH z

40

40

30 ANTENNA NOS E 20

30

10

0 200 400 600 800 FREQUENCY (MHz) 1000

20
GAIN - d Bi 0

10

5

10

0

AN T E N N A RESEARCH
100 200 300 400 500 600 700 800 900 1000

Frequency (MHz)

LPD-118 Antenna Factor, Gain and Power required for 10 V/m field strength at 1 m Frequency AFE Gain Power (GHz) (dB m -1) (dBi) (W atts) 1 23.4 6.7 .69 2 31.2 5.0 1.04 3 33.8 6.0 .84 4 34.3 8.0 .53 5 37.1 7.2 .65 6 37.2 8.6 .46 7 38.9 8.2 .50 8 40.1 8.2 .51 9 39.7 9.6 .36 10 40.9 9.3 .39 11 42.5 8.6 .46 12 43.3 7.9 .47 13 44.7 7.8 .55 14 44.1 9.0 .41 15 45.3 8.5 .48 16 45.5 8.8 .44 17 47.3 7.6 .59 18 50.5 4.9 1.09

LPD-2010/A Antenna Factor, Gain and Power required for 10 V/m field strength at 3 m Frequency AFE Gain Power (MHz) (dB m -1) (dBi) (W atts) 200 9.0 7.2 5.7 250 10.5 7.6 5.1 300 11.6 8.1 4.6 400 13.9 8.3 4.4 500 15.5 8.7 4.0 600 17.3 8.4 4.2 700 19.2 7.9 4.8 850 20.1 8.7 4.0 1000 22.4 7.8 4.9

LPD-118

Phone: 301-937-8888

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Fax: 301-937-2796

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http://www.ara-inc.com

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em c@ara-inc.com