NEC and ESP codes: guidelines, limitations, and EMC applications

Peng, Jian; Balanis, C.A.; Barber, G. C.

doi:10.1109/15.229428

Cited by 13 publications

(2 citation statements)

References 2 publications

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“…The NEC guidelines limit some aspects of the antenna design including wire radius and intersecting segment angle [12]. A centre-fed half wave linear dipole antenna at 850 MHz was modeled in free space.…”

Section: Modelling Methodsmentioning

confidence: 99%

The effect of lossy dielectric objects on a UHF RFID meander line antenna

Kanesan

Thiel

O'Keefe

2012

Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation

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Meander line antennas placed on various objects suffer a shift in resonant frequency. Numerical modeling demonstrated that the frequency increases with wire diameter and object conductivity, and decreases with increasing permittivity. This contrasts with a linear dipole where an increase in wire diameter results in a decrease in resonant frequency. A 4% bandwidth is sufficient for conductivity (σ) values up to 0.01 S/m and small changes in permittivity. This has implications for RFID antennas designed for placement on a wide variety of materials.

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Section: Modelling Methodsmentioning

confidence: 99%

The effect of lossy dielectric objects on a UHF RFID meander line antenna

Kanesan

Thiel

O'Keefe

2012

Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation

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“…NEC is a Method-of-Moments (MoM) simulator for wire antennas, which was developed at Lawrence Livermore National Laboratory in the early 1980's. As a well-known antenna simulator, it is widely used in antenna simulation and design [6][7][8][9]. In this research, the second version of NEC (NEC2) is used for computing the input impedance of the proposed antenna.…”

Section: Automated Antenna Design Using Ga and Necmentioning

confidence: 99%

A Novel Broadband Quasi-fractal Binary Tree Dipole

Chen¹

2007

PIERS Online

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With the development of fractal theory, fractal geometries are widely used in the antenna design. In this paper, a novel dipole antenna based on the quasi-fractal binary tree is proposed. To achieve broadband characteristics, the proposed antenna is optimized in an automated design, making use of the Genetic Algorithm (GA) in conjunction with NEC (Numerical Electromagnetic Codes) and cluster parallel computation. A design result is presented. A prototype of the designed antenna has been fabricated and tested. Results of the measurement verify the designed antenna is able to provide a broad impedance bandwidth.

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