Evolutionary design of an X-band antenna for NASA's Space Technology 5 mission

Lohn, Jason; Linden, D.S.; Hornby, Gregory S.; Kraus, W.F.

doi:10.1109/aps.2004.1331834

Cited by 37 publications

(30 citation statements)

References 5 publications

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“…It is already well-known that evolution can generate new and unconventional designs. The antenna example is one of the best [31]. Another good example are digital circuits [32].…”

Section: Discussion Over the Evolution Of Easmentioning

confidence: 99%

Evolutionary design of Evolutionary Algorithms

Dioşan

Oltean

2009

Genet Program Evolvable Mach

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Manual design of Evolutionary Algorithms (EAs) capable of performing very well on a wide range of problems is a difficult task. This is why we have to find other manners to construct algorithms that perform very well on some problems. One possibility (which is explored in this paper) is to let the evolution discover the optimal structure and parameters of the EA used for solving a specific problem. To this end a new model for automatic generation of EAs by evolutionary means is proposed here. The model is based on a simple Genetic Algorithm (GA). Every GA chromosome encodes an EA, which is used for solving a particular problem. Several Evolutionary Algorithms for function optimization are generated by using the considered model. Numerical experiments show that the EAs perform similarly and sometimes even better than standard approaches for several well-known benchmarking problems.

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“…It is already well-known that evolution can generate new and unconventional designs. The antenna example is one of the best [31]. Another good example are digital circuits [32].…”

Section: Discussion Over the Evolution Of Easmentioning

confidence: 99%

Evolutionary design of Evolutionary Algorithms

Dioşan

Oltean

2009

Genet Program Evolvable Mach

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“…The 'crooked-wire' antennas consisted of a series of wires joined at various locations and with various lengths (both these parameters were determined by the GA). Such unusual shapes, unlikely to be designed using conventional design techniques, demonstrate excellent performance both in simulation and physical implementation [34].…”

Section: Extrinsic and Intrinsic Analoguementioning

confidence: 96%

“…Requirements of a typical antenna include [34]: Transmit frequency; receive frequency; antenna RF input; VSWR; antenna gain pattern; antenna input impedance, and grounding. From this list, which is not exhaustive, it can be seen that this is certainly a non-trivial problem requiring a complex objective function to achieve appropriate results.…”

Section: Extrinsic and Intrinsic Analoguementioning

confidence: 99%

“…In the work presenter in [34], a GA was used in conjunction with the Numerical Electromagnetic Code, Version 4 (NEC, standard code within this area) as the simulator to create and optimize wire antenna designs. These designs not only produced impressive characteristics, in many cases similar or better to those produced by traditional methods, but their structure was often very different from traditional designs (see Fig.…”

Section: Extrinsic and Intrinsic Analoguementioning

confidence: 99%

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Challenges of evolvable hardware: past, present and the path to a promising future

Haddow

Tyrrell

2011

Genet Program Evolvable Mach

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Nature is phenomenal. The achievements in, for example, evolution are everywhere to be seen: complexity, resilience, inventive solutions and beauty. Evolvable Hardware (EH) is a field of evolutionary computation (EC) that focuses on the embodiment of evolution in a physical media. If EH could achieve even a small step in natural evolution's achievements, it would be a significant step for hardware designers. Before the field of EH began, EC had already shown artificial evolution to be a highly competitive problem solver. EH thus started off as a new and exciting field with much promise. It seemed only a matter of time before researchers would find ways to convert such techniques into hardware problem solvers and further refine the techniques to achieve systems that were competitive with or better than human designs. However, 15 years on-it appears that problems solved by EH are only of the size and complexity of that achievable in EC 15 years ago and seldom compete with traditional designs. A critical review of the field is presented. Whilst highlighting some of the successes, it also considers why the field is far from reaching these goals. The paper further redefines the field and speculates where the field should go in the next 10 years.

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“…In particular, our laboratory evolved a wire antenna design for NASA's Space Technology 5 (ST5) spacecraft. This antenna [5] has been fabricated, tested, and is scheduled for launch on the three spacecraft in 2006.…”

Section: Introductionmentioning

confidence: 99%