Round spiral antennas printed on a grounded dielectric substrate with a single surface wave mode

H. Nakano; K. Hirose; S. R. Kerner; N. G. Alexopoulos

doi:10.1109/APS.1988.94170

Round spiral antennas printed on a grounded dielectric substrate with a single surface wave mode

H. Nakano, K. Hirose, S. R. Kerner, N. G. Alexopoulos

Research output: Contribution to journal › Conference article › peer-review

Abstract

Frequency characteristics of two types of spiral antennas printed on a grounded dielectric substrate are investigated under the condition that a single surface wave mode (TM mode) is allowed to exist. The currents on the spiral arms are evaluated by using the method of moments and the radiation characteristics are examined over a frequency range of 1:1.19. The bandwidth in which the axial ratio is less than 3 dB is calculated to be 15% for a printed spiral antenna of one center source and 10% for a spiral antenna of two off-center sources. These two antennas have nearly pure resistances of 330 and 350 Ω, respectively.

Original language	English
Pages (from-to)	692-695
Number of pages	4
Journal	IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
Volume	2
DOIs	https://doi.org/10.1109/APS.1988.94170
Publication status	Published - 1988 Dec 1
Externally published	Yes

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/APS.1988.94170

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title = "Round spiral antennas printed on a grounded dielectric substrate with a single surface wave mode",

abstract = "Frequency characteristics of two types of spiral antennas printed on a grounded dielectric substrate are investigated under the condition that a single surface wave mode (TM mode) is allowed to exist. The currents on the spiral arms are evaluated by using the method of moments and the radiation characteristics are examined over a frequency range of 1:1.19. The bandwidth in which the axial ratio is less than 3 dB is calculated to be 15% for a printed spiral antenna of one center source and 10% for a spiral antenna of two off-center sources. These two antennas have nearly pure resistances of 330 and 350 Ω, respectively.",

author = "H. Nakano and K. Hirose and Kerner, {S. R.} and Alexopoulos, {N. G.}",

year = "1988",

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AU - Nakano, H.

AU - Hirose, K.

AU - Kerner, S. R.

AU - Alexopoulos, N. G.

PY - 1988/12/1

Y1 - 1988/12/1

N2 - Frequency characteristics of two types of spiral antennas printed on a grounded dielectric substrate are investigated under the condition that a single surface wave mode (TM mode) is allowed to exist. The currents on the spiral arms are evaluated by using the method of moments and the radiation characteristics are examined over a frequency range of 1:1.19. The bandwidth in which the axial ratio is less than 3 dB is calculated to be 15% for a printed spiral antenna of one center source and 10% for a spiral antenna of two off-center sources. These two antennas have nearly pure resistances of 330 and 350 Ω, respectively.

AB - Frequency characteristics of two types of spiral antennas printed on a grounded dielectric substrate are investigated under the condition that a single surface wave mode (TM mode) is allowed to exist. The currents on the spiral arms are evaluated by using the method of moments and the radiation characteristics are examined over a frequency range of 1:1.19. The bandwidth in which the axial ratio is less than 3 dB is calculated to be 15% for a printed spiral antenna of one center source and 10% for a spiral antenna of two off-center sources. These two antennas have nearly pure resistances of 330 and 350 Ω, respectively.

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ER -

Round spiral antennas printed on a grounded dielectric substrate with a single surface wave mode

Abstract

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