Author Topic: Antenna Array Design  (Read 4335 times)

ajiqnomoto

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Antenna Array Design
« on: 10 February 2021, 15:44:10 »
Hi, I would like to seek help for this particular problem. Can anyone guide me on how to design this antenna array on MMANA-GAL ?

Frequency                : 10.1MHz
Peak of beam           : 30 degree
Number of elements : min. 2 max. 6

The number of elements, the distance between elements, and the phase shift are determined to get the best performance of the antenna.

M0MCX

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Re: Antenna Array Design
« Reply #1 on: 28 April 2021, 12:18:28 »
Hey, I am probably too late for you - and I am slightly confused if all the elements can be driven (a feedpoint on both elements for say a 2-element phased yagi).

However, draw say 2 x dipole elements on the ground (Z=0)

Feed one of them.

Make height = 15m (half a wavelength)

Calculate > Start

View far field plot

The three main variables that will affect your plot will be a) heights above ground b) different element lengths and c) distance between elements

Height will change the angle (you are aiming for 30 degrees)
The element sizes will change the gain, SWR
Distance between elements will mostly change SWR and F/B ratio

Anyway, I am probably too late - but good luck.

Callum
DX Commander