Planar Array Antenna – Implementation
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Structure Of planar array antenna

The fabrication and assembly of the antenna array with separated feed network using the air gap technique is described here.

The basic structure of the proposed antenna is constructed using multiple 2x2 sub-array modules with its “H" shape printed feed line

The antenna is fed by a 50Ohm coaxial probe. The size of each patch is 16mm x 11.15mm and their inter-element spacing is approximately λ/2.


Implemented Using ADS


Advanced Design System (ADS) is an electronic design automation software system produced by Agilent EEsof EDA, a unit of Agilent Technologies

Agilent ADS supports every step of the design process—schematic capture, layout, frequency-domain and time-domain circuit simulation, and electromagnetic field simulation—allowing the engineer to fully characterize and optimize an RF design without changing tools.


Antenna feed impedance


When a signal source is applied to an RF antenna at its feed point, it is found that it presents a load impedance to the source known as the antenna "feed impedance"

In order to ensure the optimum efficiency for any RF antenna design it is necessary to maximise the transfer of energy by matching the feed

impedance of the RF antenna design to the load.
The resistive elements are made up from two constituents. These add together to form the sum of the total resistive elements

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