Analysis and measurement of a broadband spiral antenna

Afsar, M.N.; Wang, Yong; Cheung, R.

doi:10.1109/map.2004.1296145

Cited by 16 publications

(9 citation statements)

References 12 publications

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“…For the printed spiral with non-negligible arm width, the thin-wire assumption is less valid due to the fact that the currents will reside on the edges of metal strip. The analysis of them has been performed using various computational techniques, e.g., the finite-volume time-domain (FVTD) method [14], the finite-difference time-domain (FDTD) method [15][16][17][18][19][20], the finite element method (FEM) [21], and commercial full-wave solvers [22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Travelling Wave Mechanism and Novel Analysis of the Planar Archimedean Spiral Antenna in Free Space

Chen¹,

Huff²

2014

PIER

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Abstract-While Archimedean spiral antennas were invented a half-century ago, only selfcomplementary impedance can be evaluated directly from the Babinet's principle. This paper examines the effects of metal width and arm spacing on printed spiral's input impedance. A model is proposed based on examination by decomposition of planar spiral. A closed-form expression for the input impedance of Archimedean spiral antenna is obtained by evaluating the proposed model with conformal mapping techniques. Full-wave numerical simulations, Babinet's principle, and a fabricated antenna demonstrate the accuracy of the proposed model. The expression in this work can be used to find the impedance of a variety of spiral complementary structures analytically. The examination and discussion on the effects of other parameters and features in addition to the spiral itself are also provided through numerical simulation.

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Section: Introductionmentioning

confidence: 99%

Travelling Wave Mechanism and Novel Analysis of the Planar Archimedean Spiral Antenna in Free Space

Chen¹,

Huff²

2014

PIER

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“…Sinuous antennas have wideband characteristics (constant beam width and low axial ratio over a broad range of frequencies), and thus they are suitable for communicating (transmitting and receiving) over bands of frequencies (multiple channels) in airborne and communication systems [1,2]. In the presence of the back cavity, the performance of the sinuous antenna is affected.…”

Section: Introductionmentioning

confidence: 99%

An optimized lossy back cavity loaded four arm sinuous antenna

Palreddy

Zaghloul

Cheung

2010

2010 IEEE Antennas and Propagation Society International Symposium

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“…The Archimedean plane spiral antenna, which is a kind of broadband antenna, has been widely employed in radio system, EM countermeasures, EM compatibility measurement and other fields [5][6][7]. As a receiver, it captures EM fields propagating through space and converts them into voltages and currents in the antenna.…”

Section: Introductionmentioning

confidence: 99%