Search results with tag "Yagi antenna"
Low Power FM Antenna Systems
www.jampro.comantenna specifications j3yf-2 . antenna type: j3yf-2 . antenna description: jampro 3 fm yagi antenna system
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www.ojp.govThis antenna has moderately high gain, but its most important pattern feature is that the forward (main beam) gain is much higher than the gain in the opposite direction. This is called the front-to-back ratio and is evident in the pattern shown in figure 14. 5.4 Yagi Another antenna design that uses passive elements is the Yagi antenna. This ...
INTRODUCTION TO THE J POLE ANTENNA - KA3PMW
ka3pmw.comused as part of a yagi antenna as the driven element A variation of the Half Wave Di Pole is also used as the popular ¼ Ground Plane Antenna By placing the Di Pole in the vertical polarity, converting one of the ¼ wave sections into a ground plane With the ground plane radials at 40 deg, the feed point impedance is reduced to about 50 Ohms
ANTENNA BASICS FOR BEGINNERS - Top Band Hams
www.topbandhams.coma yagi antenna with 6 dB gain is equal to a dipole with 400 W drive. The decibel (dB) is a logarithmic unit that indicates the ratio of a physical quantity …
Yagi antenna design - NIST
nvlpubs.nist.govCONTENTS 1. INTRODUCTION 2.METHODOFMEASUREMENT 3.RESULTS 3.1EffectofReflectorSpacingonMeasuredGain 3.2EffectofDifferentEqualLengthDirectorsand forDifferentYagiLengths ...