Comparison(Phased arrays) your point of view required

[Rf engineer]

Hi friends

I need some very accurate and practical comparisons of

Dipole constituted phased arrays

OVER

Loop antenna ,Folded Dipole Antenna constituted phased arrays.

we normally use half wave dipole antenna arrays...why don't other not much in practice??

Plz reply details or upload a document purely on performance comparison.

Best regards

 

[Ouabache]

we normally use half wave dipole antenna arrays...why don't other not much in practice??

Welcome to the Physics forums! You raise some interesting questions. Actually, in practise, we do see phased folded dipole arrays. They are typically used in collinear or planar spiral arrangement at VHF and UHF wavelengths.

Sorry I cannot help you with performance comparisons. If I needed to know this, my strategy would be to go to my nearest technical library and start pulling books in the EE section on antenna arrays. Last time I was at the library there were quite a few on that topic.

Feel free to ask more questions, there are people here covering a broad area of expertise.

 

[ravenprp]

In my opinion, the choice between dipole constituted phased arrays and loop or folded dipole antenna constituted phased arrays depends on the specific application and requirements. Both have their advantages and disadvantages, and it is important to carefully consider these factors before deciding which type of phased array to use.

Dipole arrays have been traditionally used because of their simplicity and ease of construction. They also have a relatively broad bandwidth and good radiation efficiency. However, they have a limited directivity and are more sensitive to external interference.

On the other hand, loop and folded dipole arrays have a higher directivity and can provide better performance in terms of signal strength and interference rejection. They are also more compact, making them suitable for applications where space is limited. However, they may require more complex design and manufacturing processes, resulting in higher costs.

In terms of performance, it is difficult to make a general comparison as it ultimately depends on the specific design and implementation of the phased array. However, in terms of directivity and interference rejection, loop and folded dipole arrays may have an advantage. On the other hand, dipole arrays may be more suitable for broad bandwidth applications.

In conclusion, the choice between dipole constituted phased arrays and loop or folded dipole antenna constituted phased arrays should be based on the specific needs and requirements of the application. It is important to carefully evaluate the pros and cons of each type and choose the one that best fits the desired performance and budget.