Archimedean spiral is mostly used to design foe EW system application. The challenge is to design spiral for low frequency wide-band operation with high better performance.
Is any one have Idea how to design simple concentric circular spiral and curved circular spiral?
All are welcome to drop your design idea.
Hello Barad,
That is a good question I tried over 4 months to find a solution for how to design a high performance wide-band spiral antenna.
Please refer to the following reference for the detailed description of the design procedures:-
1- "Enhanced Broadband RF Differential Rectifier Integrated with Archimedean Spiral Antenna for Wireless Energy Harvesting Applications "
2- Vinayagamoorth, A. Design and Implementation of Wideband BALUN for Archimedean Spiral Antenna. Master’s Thesis, Apr. 2011.
3- Hinostroza, I. Design of Wideband Arrays of Spiral Antennas. Ph.D. Thesis, Jun. 2013.
There are several design papers on high frequency Archimedean spiral design. Bandwidth of 5:1 or 10:1 comfortably can be obtained, and a stable input impedance is achieved through a self-complementary geometry. The Archimedean spiral antenna can be classified as a frequency-independent antenna in the sense that its input impedance and gain remain almost constant throughout the bandwidth. A sinuous meander Archimedean spiral line can be also used to miniaturize the aperture and a controlled width exponential spiral line that helps to minimize the input impedance.
Mohamed M. Mansour Its sounds interesting. the spiral design struggling poor performance in lower cut-off frequency and higher cut-off frequency.
This things I am looking for how to required performance.
Thank you.
Denis Jaisson
I hope this is a technical research platform. where anyone can be post their research difficulties for getting some inputs. If you are not interested for contributing something, then you can ignore it.The technical ideas and knowledge can be acquire by discussion only.
Thank you.
Dear Denis Jaisson
you might be forgot this is a research forum. So If any ones having some doubt he can ask here and get the suggestion. I agreed that we can get some basic things in google. But peoples are asking here to get the response from the peers who are having lots of experience and exposure. Hence it essential to get the suggestion from the experienced peoples instead of going through basic literature.So, if you have nothing to contribute I request you to please ignore my discussion and questions.
Thank you.
Anil Kumar Pandey Thanks for you response. I agreed with you.
Many Archimedean spiral antenna is available in literature with operation bands of 2-18 GHz /2-40 GHz / 0.518 GHz. But in the real time application the performance degrades, which mainly happens at extremely lower cut off and extreme higher cut off. Hence the design fails to claim its place in EM/ RADAR systems.
Mainly the gain response is poor even if cavity backed configuration with absorbers are used.
Any better technique please let me know.
Thank you.
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