Scalable 2.45 GHz electrically small antenna design for metaresonator array

Sum, Yee Loon; Rheinheimer, Vanessa; Soong, Boon‐Hee; Monteiro, Paulo J.M.

doi:10.1049/joe.2017.0015

Cited by 9 publications

(4 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Geometric configuration of the MTM unit cell is selected to be hexagonal for its tessellating property and the ability to achieve the highest gain relative to its area. This antecedent-based hexagonal-stubbed CSRR structure [23] can be modelled by a shunt LC-resonator tank excited by an axial electric field. Exhibiting the behavior of an electric dipole, the CSRR-loaded ESA generates EM waves that propagate along the ring's surface, consisting of capacitive and inductive elements.…”

Section: Csrr Unit Cell Structurementioning

confidence: 99%

Investigation of Material Loading on an Evolved Antecedent Hexagonal CSRR-Loaded Electrically Small Antenna

Ng,

Sum,

Soong

et al. 2023

Sensors

Self Cite

View full text Add to dashboard Cite

Recent advances in embedded antenna and sensor technologies for 5G communications have galvanized a response toward the investigation of their electromagnetic performance for urban contexts and civil engineering applications. This article quantitatively investigates the effects of material loading on an evolved antecedent hexagonal complementary split-ring resonator (CSRR)-loaded antenna design through simulation and experimentation. Optimization of the narrowband antenna system was first performed in a simulation environment to achieve resonance at 3.50 GHz, featuring an impedance bandwidth of 1.57% with maximum return loss and theoretical gain values of 20.0 dB and 1.80 dBi, respectively. As a proof-of-concept, a physical prototype is fabricated on a printed circuit board followed by a simulation-based parametric study involving antenna prototypes embedded into Ordinary Portland Cement pastes with varying weight percentages of iron(III) oxide inclusions. Simulation-derived and experimental results are mutually verified, achieving a systemic downward shift in resonant frequency and corresponding variations in impedance matching induced by changes in loading reactance. Finally, an inversion modeling procedure is employed using perturbation theory to extrapolate the relative permittivity of the dielectric loaded materials. Our proposed analysis contributes to optimizing concrete-embedded 5G antenna sensor designs and establishes a foundational framework for estimating unknown dielectric parameters of cementitious composites.

show abstract

Section: Csrr Unit Cell Structurementioning

confidence: 99%

Investigation of Material Loading on an Evolved Antecedent Hexagonal CSRR-Loaded Electrically Small Antenna

Ng,

Sum,

Soong

et al. 2023

Sensors

Self Cite

View full text Add to dashboard Cite

show abstract

“…Comparison between characteristic parameters of our electrically small antenna with most recent work of other groups. In the cases, where the characteristic parameters were not readily denoted in references [13][14][15]18,19,21,22], they were indirectly calculated based on the data in the aforementioned references.…”

Section: Dipole Antenna With Split Ring Resonatormentioning

confidence: 99%

“…In this context, metamaterial inspired antenna designs have gained large interest in recent years [1][2][3][4][5][6][7][8][9]. Electrically small antennas (ESAs) moved into the focus of ongoing research [10][11][12][13][14][15], especially those exploiting split-ring resonators (SRRs) [12,[16][17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Efficient and Compact Near-Field Coupled Hybrid Antenna Using a Single Radiating Subwavelength Split-Ring Resonator

Dang

Rahm

2019

Electronics

View full text Add to dashboard Cite

Modern applications in the realms of wireless communication and mobile broadband Internet increase the demand for compact antennas with well defined directivity. Here, we present an approach for the design and implementation of hybrid antennas consisting of a classic feeding antenna that is near-field-coupled to a subwavelength resonator. In such a combined structure, the composite antenna always radiates at the resonance frequency of the subwavelength oscillator as well as at the resonance frequency of the feeding antenna. While the classic antenna serves as impedance-matched feeding element, the subwavelength resonator induces an additional resonance to the composite antenna. In general, these near-field coupled structures are known for decades and are lately published as near-field resonant parasitic antennas. We describe an antenna design consisting of a high-frequency electric dipole antenna at f d = 25 GHz that couples to a low-frequency subwavelength split-ring resonator, which emits electromagnetic waves at f SRR = 10.41 GHz. The radiating part of the antenna has a size of approximately 3.2 mm × 8 mm × 1 mm and thus is electrically small at this frequency with a product k · a = 0.5 . The input return loss of the antenna was moderate at − 18 dB and it radiated at a spectral bandwidth of 120 MHz. The measured main lobe of the antenna was observed at 60 ∘ with a − 3 dB angular width of 65 ∘ in the E-plane and at 130 ∘ with a − 3 dB angular width of 145 ∘ in the H-plane.

show abstract

“…Trident shape with a meandered line electrically small antenna is proposed for single band 2.45 GHz application [5]. Electrically small scalable antenna fabricated on a thin circuit board working at 2.4 GHZ frequency is presented in [6]. A compact size antenna using metamaterial based Taconic TLY-5 conducting material having high gain and circular polarization applicable for WiMAX application is proposed in [7].…”

Section: Introductionmentioning

confidence: 99%

An Electrically Small Antenna Using Defected Ground Structure for Rfid, GPS and Ieee 802.11 a/B/G/S Applications

Patel¹,

Desai²,

Upadhyaya³

2018

PIER Letters

View full text Add to dashboard Cite

Abstract-A compact size (20 × 21 mm 2 ) planar tri-band electrically small antenna is presented for Wireless ISM, RFID application resonating at 1.57 GHz, 2.47 GHz and 926 MHz. The Proposed structure consists of a dual-slot radiating patch and two split ring structures made using combination of L and U shapes forming a defected ground structure (DGS). Length and width of the planar slot is optimized to get the required frequency bands whereas incorporation of DGS leads to increase in impedance bandwidth. The simulated and measured return losses (S 11 ) of all three frequency bands are greater than 10 dB. Impedance bandwidths of 20 MHz (913-934 MHz), 90 MHz (1.5-1.59 GHz) and 70 MHz (2.43-2.50 GHz) are achieved for the proposed range. The electrically small antenna radiation pattern is omnidirectional, and gains of 0.32 dBi, 1.2 dBi and 1.5 dBi are achieved which make the antenna suitable for RFID, GPS and WLAN applications.

show abstract

Scalable 2.45 GHz electrically small antenna design for metaresonator array

Cited by 9 publications

References 16 publications

Investigation of Material Loading on an Evolved Antecedent Hexagonal CSRR-Loaded Electrically Small Antenna

Investigation of Material Loading on an Evolved Antecedent Hexagonal CSRR-Loaded Electrically Small Antenna

Efficient and Compact Near-Field Coupled Hybrid Antenna Using a Single Radiating Subwavelength Split-Ring Resonator

An Electrically Small Antenna Using Defected Ground Structure for Rfid, GPS and Ieee 802.11 a/B/G/S Applications

Contact Info

Product

Resources

About