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Author Topic: what does the kd vector mean;  (Read 1105 times)

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Offline Dinos TsakalakisTopic starter

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what does the kd vector mean;
« on: September 05, 2021, 03:25:13 pm »
Hallo ,i was studding about antennas when I  suddenly find the kd term that is a vector as shown at the following file ,that is and it is  describing a Linear array antenna, so i was find difficult to understand  what is the meaning of k in front of d, that represents the distance between an initial point of antenna and the calculation point.

Thank,you
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Offline Joel_Dunsmore

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Re: what does the kd vector mean;
« Reply #1 on: September 05, 2021, 06:54:27 pm »
Ok, I'll be the first to say it (but I can't be the first to think it)...."It's all Greek to me"
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Offline Joel_Dunsmore

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Re: what does the kd vector mean;
« Reply #2 on: September 05, 2021, 07:05:27 pm »
But to give a serious answer: I guess k would be the wave vector and d would be the magnitude of the position.  I found this resource for wave vector: https://www.antenna-theory.com/definitions/wavevector.php
and this link (https://www.antenna-theory.com/arrays/arrayfactor.php ) appears to use ri for the value d in your drawing.
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