Phase Center Study of the Electromagnetic Band Gap Antenna: Application to Reflector Antennas

Menudier, Cyrille; Chantalat, Régis; Thévenot, Marc; Monédière, Thierry; Dumon, P.; Jecko, Bernard

doi:10.1109/lawp.2007.895922

Cited by 22 publications

(14 citation statements)

References 5 publications

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“…17(b) shows that the phase center variation is 22.86 mm (0.139 , where is the wavelength at the center frequency 1.825 GHz in the operating frequency band) in the x-axis, and 11.06 mm (0.067 ) in the y-axis. In [32], [33], the GNSS antennas could achieve accurate positioning with phase center variation of less than 0.15 , and our proposed antenna has the phase center variations much less than this.…”

Section: Simulation and Measurement Resultsmentioning

confidence: 92%

A Simple Planar Polarization Reconfigurable Monopole Antenna for GNSS/PCS

Cao

Cheung

Yuk

2015

IEEE Trans. Antennas Propagat.

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The design of a simple planar polarization reconfigurable monopole antenna for the Global Navigation Satellite System (GNSS) and Personal Communications System (PCS) is presented. The antenna consists of two meandered monopoles, a feeding network using the Wilkinson power divider, two switchable 90 -phase shifters implemented using -microstrip lines and a defected ground structure (DGS). The meandered monopoles resonating at about 1.55 GHz are placed perpendicular to each other. The input signal is divided into two signals with equal amplitude and phase by the power divider and fed to the meandered monopoles via the phase shifters. The two signals arriving at the two monopoles have a phase difference of 90 , or 0 , depending on the phase shifters controlled using six PIN-diode switches, hence generating a right/left-handed circularly polarized (CP) or linearly polarized (LP) signal. We propose a novel biasing technique to control the six PIN diodes using five voltages. Measurement results show that the antenna in CP has an impedance bandwidth of 1.06-1.64 GHz and an axial-ratio bandwidth of 1.43-1.84 GHz, and in LP has an impedance bandwidth of 1.63-1.88 GHz. Simulated and measured results on S11, AR, radiation pattern, and gains show good agreements.

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Section: Simulation and Measurement Resultsmentioning

confidence: 92%

A Simple Planar Polarization Reconfigurable Monopole Antenna for GNSS/PCS

Cao

Cheung

Yuk

2015

IEEE Trans. Antennas Propagat.

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“…The phase center is typically located behind the ground plane of the structure (about 30mm at 5GHz and 7.5GHz), as shown in Fig.6c. A detailed study about the phase center variation can be found in [6]. Some maximum gains about 17.2 dB for the lowest band and 18.8 dB for the highest one are obtained.…”

Section: Ebg Dual Band Antenna Performancesmentioning

confidence: 98%

EBG dual band antenna using two layer FSS to feed a reflector antenna

Kanso

Chantalat

Thévenot

et al. 2010

2010 IEEE Antennas and Propagation Society International Symposium

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In this letter, we propose a new design of a dual band electromagnetic band gap (EBG) resonator structure feeding a reflector antenna for space multibeam applications. The EBG antenna is composed of a double-layer frequency selective surfaces (FSS) arranged in the longitudinal direction and a square horn as feed. First we devise a technique to adapt the dual band EBG antenna characteristics for this space application which requires the same EBG phase center and the same radiation patterns for the two frequency bands. Then, the design and the performances of the dual band EBG antenna (at 5 GHz and at 7.5 GHz) are detailed.

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“…The phase centre calculation method used here is based on the same approach used in [1,4]. Due to the fact that this antenna is an omnidirectional one and has its main radiation close to θ = 90 degree, the study will consider the ranges of 80-90, 70-80, 60-70, 50-60 and 40-50.…”

Section: (B)mentioning

confidence: 99%

“…Studying the phase centre location of such antennas is also important when using them for pulse transmission/reception, as the movement of the phase centre will distort the signal. According to one definition of phase centre, it is the origin of a sphere over which the phase of the radiated field has minimum change for certain θ and ϕ ranges [1]. In this paper using this definition, the phase centre of UWB monopole antennas is calculated over the frequency band of operation.…”

Section: Introductionmentioning

confidence: 99%