CRLH-TL Based Reconfigurable Antennas With Multiple Parameter Reconfigurability

Ghosh, Kalyanbrata; Das, Susmita

doi:10.1109/tap.2022.3141195

Cited by 20 publications

(8 citation statements)

References 23 publications

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“…1, and can be constructed using Surface-Mount Technology (SMT) or distributed components. CRLH is widely used in many applications to improve gain, increase bandwidth, and manufacture low-complexity systems [13,14]. In [15], a printed array was constructed based on substrate-integrated waveguide SIW technology combined with slots and via techniques of high millimetre-wave bands with ±30° scanning angle with a gain of 8.5 dBi.…”

Section: Introductionmentioning

confidence: 99%

A Miniaturized Printed Circuit CRLH Antenna-based Hilbert Metamaterial Array

Ismail

Elwi

Salim

2022

JCOMSS

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With the development of communication systems and antennas, various challenges arise that require antennas of small size with enhanced performance. Metamaterials (MTM) defects introduced a considerable solution to such a challenge. Therefore, in this paper, a lightweight with low profile antenna is designed based on a novel design of a Composite Right/Left-Handed CRLH-MTM Hilbert array. The proposed CRLH-MTM unit cell consists of a T-symmetric CRLH unit cell conjugated to the 3rdorder Hilbert on the ground plane through a T-stub structure to enhance the gain-bandwidth product. CST-MWS is used to stimulate and design the proposed antenna structure. The antenna parameters are optimized to evaluate the antenna performance in gain and S11. As a result, the antenna can operate forward and backwards with a large scanning angle ranging from +34 o to -134 o with changing frequency, and dual-band extended from 3.3GHz to 4.2GHz 4.86GHz 5.98GHz with a maximum gain of 7.24dBi and 3.74dBi, respectively. The beam steering is achieved by trough controlling the switching operation of PIN diodes. As a result, the antenna can scan up to 8° from 34° to 42° at 3.5GHz with constant gain along with the operating range.

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Section: Introductionmentioning

confidence: 99%

A Miniaturized Printed Circuit CRLH Antenna-based Hilbert Metamaterial Array

Ismail

Elwi

Salim

2022

JCOMSS

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“…The different e-field distributions in the two different bands interact differently with the asymmetric ground plane causing the disturbance in the radiation pattern. A comparison table [9][10][11][12][13][14] has been shown in Table 2.…”

Section: Discussionmentioning

confidence: 99%

“…al. 9 An ACPW-fed CRLH-TL-loaded frequency band and polarization RA is presented in this paper using open-ended boundary condition. The novelty of the work is that in this proposed structure, a transition between a circular patch antenna and a CRLH-TL-based metamaterial antenna has been presented.…”

Section: Introductionmentioning

confidence: 99%

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CRLH‐TL‐loaded metamaterial antenna with frequency band and polarization reconfigurability

Ghosh,

Chandra,

Kumar

et al. 2023

Int J Communication

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SummaryIn this communication, an asymmetric co‐planar waveguide (ACPW)–fed composite right–left‐handed transmission line (CRLH‐TL)–based frequency band and polarization reconfigurable antenna (RA) is presented. The reconfigurability is achieved by using a PIN diode. When the diode is in OFF state, meander line works as part of ground. Hence, the antenna is like a circular patch antenna working at 5.15 GHz. In the ON state, the antenna works as a CRLH‐TL‐based antenna with an additional lower band resonating at 2.45 GHz. The antenna also has circular polarization (CP) property. The lower 2.4 GHz band is covering for IEEE 802.11 b/g/n/ax/be applications, whereas the higher band is covering the WiFi bands of IEEE 802.11a/h/n/ac/ax/be applications with CP radiation (upper band). This antenna is effective in a scattering environment such as in urban areas and indoor communication.

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“…The reconfiguration techniques are presented in Figure 1. Existing reconfiguration solutions for RF switches are based on positive-intrinsic-negative (PIN) diodes [16,17], microelectromechanical systems (MEMS) switches [18], varactor diodes [19], lumped elements [20], tunable materials [21,22], or optical switches [23]. Depending on the ON and OFF conditions, these devices change the structure (length) of the radiating element.…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of a PDLC-Based Reconfigurable Hilbert Fractal Antenna for Large and Fine THz Frequency Tuning

Garu

Wang

2022

Micromachines

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The proposed reconfigurable radiating antenna design is based on the integration of a reconfigurable fractal antenna and electro-optic substrate material. This antenna can be adjusted to achieve either re-configurability or tunability in the desired frequency range for wireless systems. The electromagnetic characteristics of the fractal antenna are manipulated at both the level of fractal geometry, electrical length and dielectric substrate. The designed antenna features multiband responses, in which the geometry and length change create a large frequency shift and the dielectric change using polymer dispersed liquid crystal (PDLC) creates fine and/or continuous tuning. The far field and scattering properties of the antenna are analyzed using the Computer Simulation Technology (CST) Microwave Studio Suite. The proposed approach has successfully demonstrated reconfigurable switching for up to four frequency bands between 0.2 and 0.6 THz. The dielectric constant change in the PDLC substrate shows fine and continuous frequency tuning with an 8% maximum frequency shift when operating around 0.54 THz and a high directivity of 7.35 dBi at 0.54 THz and 8.43 dBi at 0.504 THz. The antenna can also realize a peak gain of 4.29 dBi at 0.504 THz in the extraordinary polarization state of PDLC. The designed antenna can be readily integrated in the current communication devices, such as satellites, smart phones, laptops, and other portable electronic devices, due to its compact geometry and IC compatible design. In satellite applications, the proposed antenna can play a significant role in terms of security. The antenna could be extremely useful for satellites that want to keep their information secret; by constantly switching their operating frequency, spy satellites can evade detection and data collection from enemy ears.

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CRLH-TL Based Reconfigurable Antennas With Multiple Parameter Reconfigurability

Cited by 20 publications

References 23 publications

A Miniaturized Printed Circuit CRLH Antenna-based Hilbert Metamaterial Array

A Miniaturized Printed Circuit CRLH Antenna-based Hilbert Metamaterial Array

CRLH‐TL‐loaded metamaterial antenna with frequency band and polarization reconfigurability

Design and Analysis of a PDLC-Based Reconfigurable Hilbert Fractal Antenna for Large and Fine THz Frequency Tuning

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