Input impedance, radiation pattern, and radar cross section of spiral antennas using FDTD

Penney, C.W.; Luebbers, R.

doi:10.1109/8.318663

Cited by 39 publications

(16 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When the two wires are fed at the inner spiral-wire ends, the antenna radiates circularly polarized (CP) beams on both sides of the antenna plane. To radiate the CP beam only on one side, the antenna is backed by a cavity [4][5][6] or a plane reflector [7][8][9]. In each antenna configuration, a balun circuit is required to achieve antiphase excitation for the CP radiation in the direction normal to the antenna plane (axial direction) [2,3].…”

Section: Introductionmentioning

confidence: 99%

A two‐wire spiral antenna backed by a plane reflector with an unbalanced feed system

Hirose

Miyamoto

Nakano

2002

Electron. Comm. Jpn. Pt. I

View full text Add to dashboard Cite

SUMMARYA novel unbalanced feed system, which achieves quasi-antiphase excitation without a balun circuit, is proposed for a two-wire spiral antenna backed by a conducting plane reflector. An inner spiral-wire end is fed from a coaxial line and the other inner spiral-wire end is short-circuited to the reflector. The antenna is analyzed using the method of moments. The radiation characteristics are found to be comparable to those of a conventional spiral antenna with antiphase excitation. The frequency bandwidth for a 3-dB axial-ratio criterion is 18% (20% for antiphase excitation), with a gain of approximately 8 dBi (8 dBi for antiphase excitation). The input impedance is almost constant at 170 -j30 ohms.

show abstract

Section: Introductionmentioning

confidence: 99%

A two‐wire spiral antenna backed by a plane reflector with an unbalanced feed system

Hirose

Miyamoto

Nakano

2002

Electron. Comm. Jpn. Pt. I

View full text Add to dashboard Cite

show abstract

“…Since the introduction of the (Archimedean) spiral antenna by E. M. Turner [11] and its identification by V. H. Rumsey [12] as a structure capable of frequency-independent operation, a number of authors [13][14][15][16][17][18][19] have analyzed the spiral antenna. These theoretical analyses were complimented by numerical modeling based on the Method of Moments [20][21][22][23][24][25] and the FD-TD methods [26].…”

Section: Introductionmentioning

confidence: 99%

Theory of angle estimation using a multiarm spiral antenna

Penno

Pasala²

2001

IEEE Trans. Aerosp. Electron. Syst.

View full text Add to dashboard Cite

An analysis of angle estimation using a single aperture, multimode spiral is presented. It is demonstrated that in addition to the classical Comparison method, modern parameter estimation techniques such as Multiple Signal Classification (MUSIC) and MLM (Maximum Likelihood Method) can be applied to multimode antenna technology for angle estimation. These techniques, coupled with the advent of digital receivers make possible the elimination of the mode-forming network. Results of computer simulations show that these new approaches give lower bias and variance, and also extend coverage toward boresight compared with the traditional Comparison method.

show abstract

“…It is also has some disadvantages such as bidirectional radiation, larger size, and input impedance is not equal to 50 Ω [8]. Many researchers have done many experiments to enhance the spiral antenna's radiation performances and very little was found on the input impedance [9][10][11]. This paper proposed a method to enhance the ASA's radiation performance of input impedance reduction.…”

Section: Introductionmentioning

confidence: 99%

A New Method for Reducing the Input Impedance of the Archimedean Spiral Antenna

Zhou¹,

Huang²,

Wu³

et al. 2017

Proceedings of the International Conference on Communication and Electronic Information Engineering (CEIE 2016)

View full text Add to dashboard Cite

This paper presents an Archimedean spiral antenna (ASA) and explores the radiation characteristics of the ASA. We proposes a parallel Archimedean spiral antenna (PASA). The proposed antenna can maintain the radiation characters with a half input impedance compared with the ordinary ASA. The characteristics of the antennas such as VSWR, realized gain, radiation patterns are given. From the simulation results, we can see that this method can successfully reduce the input impedance of the ASA.

show abstract

Input impedance, radiation pattern, and radar cross section of spiral antennas using FDTD

Cited by 39 publications

References 23 publications

A two‐wire spiral antenna backed by a plane reflector with an unbalanced feed system

A two‐wire spiral antenna backed by a plane reflector with an unbalanced feed system

Theory of angle estimation using a multiarm spiral antenna

A New Method for Reducing the Input Impedance of the Archimedean Spiral Antenna

Contact Info

Product

Resources

About