Pattern Reconfigurable Cubic Slot Antenna

Shamsinejad, Souren; Khalid, Nabil; Monavar, Fatemeh M.; Mirzavand, Rashid; Moradi, Gholamreza; Mousavi, Pedram

doi:10.1109/access.2019.2917145

Cited by 16 publications

(9 citation statements)

References 18 publications

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“…The square ring slot radiator in [13] was designed to provide dual-polarization characteristics maintaining the performances better in terms of fundamental radiation characteristics. Design of cubic slot in [12] could switch between omni-directional and broadside radiation pattern. A compact large-declination longitudinal slot array antenna developed in [11] achieves a larger off angle[declination] and a lower side lobe level.…”

Section: Slot Introduction In Antenna and Antenna Array To Meet Desired Resultmentioning

confidence: 99%

A Survey: Slot Antenna and Antenna Array.

Bhat¹,

Desai²

2021

JUSST

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Slots are generally introduced in the antenna or antenna to improve the impedance matching, improve the bandwidth, and gain. Sometimes slots are introduced in the ground planes, or between antenna elements to reduce the mutual coupling between elements. The antenna being an important element in wireless communication technology, the design of the same with different requirements is important. This paper gives the survey of the slot antenna and antenna array constructed through waveguide and microstrip lines, to meet different antenna parameters as required in various wireless communication technology.

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Section: Slot Introduction In Antenna and Antenna Array To Meet Desired Resultmentioning

confidence: 99%

A Survey: Slot Antenna and Antenna Array.

Bhat¹,

Desai²

2021

JUSST

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“…When the number of target signals is small, the system will turn off some antennas. The system not only reduces resource consumption, but also effectively reduces electromagnetic compatibility between antennas [ 15 , 16 , 17 ]. In engineering applications, adjustable devices (such as microwave switch, variable capacitor, liquid metal material, or graphene) are usually loaded on the antenna surface, and then the current distribution on the antenna surface can be changed by controlling these adjustable devices, allowing the antenna state to be reconfigured [ 18 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable Antenna Array Direction Finding System Based on a Fast Search Algorithm

Liu

Peng

Chen

et al. 2021

Sensors

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In a traditional antenna array direction finding system, all the antenna sensors need to work or shut down at the same time, which often leads to signal crosstalk, signal distortion, and other electromagnetic compatibility problems. In addition, the direction-finding algorithm in a traditional system needs a tremendous spectral search, which consumes considerable time. To compensate for these deficiencies, a reconfigurable antenna array direction finding system is established in this paper. This system can dynamically load part or all of the antennas through microwave switches (such as a PIN diode) and conduct a fast direction of arrival (DOA) search. First, the hardware structure of the reconfigurable antenna is constructed. Then, based on the conventional spatial domain search algorithm, an improved transform domain (TD) search algorithm is proposed. The effectiveness of the system has been proven by real experiments, and the advantage of the system has been verified by detailed simulations.

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“…In the designs optimization techniques are applied to enhance the parameters of the antenna as well as studying the effect of different dimensions and materials on parameters [4]. Deployment, manufacturing techniques and production procedures, all have been widely investigated at microwave frequencies for the different application domains, ranging from medical wearable applications to radars [5][6][7][8]. In radio systems, many different antenna types are used with specialized properties for particular applications [9][10].…”

Section: Introductionmentioning

confidence: 99%

Design, Analysis, and Optimization of the Array of Axial Rectangular Slots on a Cylindrical Waveguide

2021

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In the current work, for the first time, the design equations for an array of rectangular slots axially placed on a cylindrical waveguide are driven and presented, making it possible to attain asymmetrical and non-broadside patterns with higher bandwidths. The method of least squares is then used for both the radiation pattern synthesis with the specified side lobe level, and the array input impedance matching. For optimization, the error function comprised of the three terms of impedance matching, array pattern synthesis, and slot design equations is constructed. To minimize the error function, the genetic algorithm combined with the conjugate gradient method is utilized, as well as the geometrical characteristic of the slots which are defined. This procedure increases the design speed and provides the means to synthesize any desired pattern for an array of axial rectangular slots on a cylindrical waveguide. Numerical and fabrication examples are presented as illustrations of the proposed synthesis method The results of the proposed method are verified by using the commercial software High-Frequency Structure Simulator (HFSS) in comparison to measurement results obtained out of the proposed prototype of a fabricated antenna operating at the frequency of 9 GHz. INDEX TERMS slotted cylindrical antenna, axial slot array, design equations, Method of Least Squares (MLS), genetic algorithms.

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Pattern Reconfigurable Cubic Slot Antenna

Cited by 16 publications

References 18 publications

A Survey: Slot Antenna and Antenna Array.

A Survey: Slot Antenna and Antenna Array.

Reconfigurable Antenna Array Direction Finding System Based on a Fast Search Algorithm

Design, Analysis, and Optimization of the Array of Axial Rectangular Slots on a Cylindrical Waveguide

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