Technology Considerations for the Use of Multiple Beam Antenna Systems in Communication Satellites

Matthews, E. W.; Rubin, Milton D.

doi:10.1109/tmtt.1979.1129780

Cited by 22 publications

(4 citation statements)

References 7 publications

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“…In 1979, "reconfigurability" was defined as "the ability to adjust the beam shape on command" [7]. Four main types of techniques are generally used to achieve reconfigurable antennas: switching structures, mechanically movable components, antenna arrays, and variable materials [8].…”

Section: Introductionmentioning

confidence: 99%

Frequency-Reconfigurable Microstrip Patch Antenna Based on Graphene Film

Wang

Chen

et al. 2023

Electronics

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Fifth-generation mobile communication systems must connect to multiple wireless networks. In order to enable a single device to match the frequency bands of multiple wireless networks, it is usually necessary to use multiple single-band or multi-band antennas, which occupy a large amount of space inside a given device. Using frequency-reconfigurable antennas to replace multiple single-function antennas is an effective way to solve this problem. In this paper, we propose a frequency-reconfigurable microstrip patch antenna based on graphene film, which fills the slot of the radiating patch with graphene film. It was found that the surface current of the antenna can be changed by changing the conductivity of graphene through bias voltage, which allows the operating mode of the antenna to switch between a nearly slotted antenna and a nearly unslotted antenna to achieve frequency reconfigurability. By changing the bias voltage from 0 V to 9 V, the resonant frequency of the antenna can be switched from 29.6 GHz to 40 GHz, and the center frequency can by altered by 10.4 GHz, corresponding to the reflection coefficients of −26 dB and −20.8 dB, respectively. The antenna achieves good matching in both operating modes.

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Section: Introductionmentioning

confidence: 99%

Frequency-Reconfigurable Microstrip Patch Antenna Based on Graphene Film

Wang

Chen

et al. 2023

Electronics

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“…It's an oversized circular part [5]. Earlier, "reconfigurability" outlined "the nature of change in shape of outward wave" [6]. dynamic modification had space satellite.…”

Section: Introductionmentioning

confidence: 99%

A Review on Reconfigurable Antennas for 4G and 5G Wireless Communications

Jain¹,

Rawal²

2021

SKIT Research Journal

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Communication technologies steer by evolution shift need wireless organization to maneuver in reference to multi-function and high potency. Therefore, analysis development on reconfigurable antenna for swap electrical parameters in synchronous as per demand in suits operating state of antenna at any given time. Characteristics and basic properties with single and multiple reconfigurability modes area units investigated. Reconfigurable antennas square measure plan supported parameters like frequency, polarization and radiation. If associate antenna be reconfigurable into many nations need range of active parts. The long-established multi-antennas square measure replaced by a 1 and distinctive antenna. During this paper describe a frequency and polarization plan antenna understand by switch calibration with frequency switches, PIN diode or MEMS frequency switches and structure, that's mainly applicable in multi and single band spring matrix internet and understand amusing operate in between left and right orientated circular polarization in communication system.

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“…These antennas typically provide contiguous coverage over a specified field-of-view by using high-gain overlapping spot beams [1]- [4]. Meanwhile, there are many application in the communications where it is quite desirable to have a high-gain antenna which will work over an extremely wide frequency arrange.…”

Section: Introductionmentioning

confidence: 99%

A Study of Log Periodic Feeds Multiple-Beam Antenna: Offset Parabolic Reflector Antenna

Shi

Sun

Lü

2008

2008 Global Symposium on Millimeter Waves

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The application of an array of circular polarized log periodic dipole antennas (LPDA) as feed array for a multiplebeam antenna to cover 3.5:1 bandwidths is described. Meanwhile, the use of an array of log-periodic antennas for two kinds of arrangement: rectangular grid and hexagonal grid illumination is also presented. In comparison with the rectangular grid, hexagonal grid is more efficient in beam coverage area for synchronous-orbiting communications satellites. Enhanced feed concept is used in the LPDA feed array in order to increase gain in coverage area. Finally, the simulated results for beam contour which is excite by right-hand circular polarized LPDA of both grids and enhanced beam contour over the frequency range of 0.8GH to 2.5GHz are demonstrated.

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Technology Considerations for the Use of Multiple Beam Antenna Systems in Communication Satellites

Cited by 22 publications

References 7 publications

Frequency-Reconfigurable Microstrip Patch Antenna Based on Graphene Film

Frequency-Reconfigurable Microstrip Patch Antenna Based on Graphene Film

A Review on Reconfigurable Antennas for 4G and 5G Wireless Communications

A Study of Log Periodic Feeds Multiple-Beam Antenna: Offset Parabolic Reflector Antenna

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