Bandwidth-Enhanced Miniaturized Patch Antenna Operating at Higher Order Dual-Mode Resonance Using Modal Analysis

Bhattacharyya, Arka; Pal, Joydeep; Patra, Kaushik; Gupta, Bhaskar

doi:10.1109/lawp.2020.3048444

Cited by 24 publications

(32 citation statements)

References 18 publications

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“…The other meandered antenna presented in Reference 20 with very high efficiency and gain, occupies a very large area. The results of these works, 14,19,20 prove that it is difficult to balance the key parameters for meandered type antennas. In terms of bandwidth, two works, 7,13 are good examples, but have a large size.…”

Section: Implementation Results and Comparisonmentioning

confidence: 99%

“…There are two approaches to design the ESAAs: 1) designing an electrically smaller antenna as a sub-array of the ESAA, [12][13][14][15][16][17][18][19][20] and 2) designing an array by diminishing the gap between its elements as much as possible. [21][22][23][24][25] This technique was recently introduced as tightly coupled antennas (TCAs).…”

Section: Introductionmentioning

confidence: 99%

“…[21][22][23][24][25] This technique was recently introduced as tightly coupled antennas (TCAs). [19][20][21][22] Both methods prove that designing a TCA based on the ESA can be very challenging.…”

Section: Introductionmentioning

confidence: 99%

“…18 However, employing some complicated meandered slits on the patch can prevent the bandwidth reduction and gain/efficiency degradation. 14,19,20 The latter technique called TCA is defined for wideband applications with low antenna-to-antenna isolation. 22 In TCAs, the enhanced capacitive coupling between adjacent antennas cancel the inductance effect of the ground plane and thus result in wide bandwidth.…”

Section: Introductionmentioning

confidence: 99%

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Miniaturized design of coupled bi‐element array antenna using sequential inductive and interdigital capacitive circuits

Zaker

2021

Int J RF Mic Comp-Aid Eng

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An electrically small array antenna (ESAA) is proposed including two tightly coupled half-monopole antennas (TCMAs) as a single radiation element with two excitation ports. By properly using two consecutive inductive-capacitive loadings in the conventional bi-element monopole, total electrical length of the resonant frequency is increased, significantly and then the frequency migrates from 4 to 0.5 GHz as a frequency sample (i.e., an 88% reduction). This combination consists of several stubs on each of the monopoles and an interdigital capacitor designed in the dead space between them so that only a compact overall size of 0:02λ 0 Â 0:035λ 0 at 0.5 GHz is occupied. The studies on different subsections of the TCMA are done and additionally an extended circuit model and simplified one are presented which agrees well with simulation. Due to the fully symmetrical design and elimination of the cross currents, a stable omni-directional radiation pattern with high polarization purity and radiation efficiency over 20 dB and 78% is achieved, respectively. An implemented prototype exhibits an improved impedance matching and measured 10 dB S 11 bandwidth of 34% which are in good agreement with simulation. The proposed TCMA can be a good candidate for compact wireless systems such as RFID sensors.

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Section: Implementation Results and Comparisonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Miniaturized design of coupled bi‐element array antenna using sequential inductive and interdigital capacitive circuits

Zaker

2021

Int J RF Mic Comp-Aid Eng

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“…However, the TM 10 mode has an inherent limitation of low gain, which is not optimum to mitigate the propagation losses. Therefore, researchers have proposed different methods to overcome the gain limitation by using array of patches [1]- [2], stack of patches [3]- [4], loading of patches by a superstrate [5]- [9], shunt inductive loading [10]- [11], and higher-order modes [12]- [27].…”

Section: Introductionmentioning

confidence: 99%

Improving the Sidelobe Level, Return Loss and Bandwidth of Notch-Loaded TM₃₀ Mode Patch via Fractal-Slot

2022

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This paper presents a method for sidelobe level (SLL) reduction, return loss improvement, and bandwidth enhancement in notch-loaded TM 30 mode rectangular patch antennas. In this method, a fractal-slot is introduced in the center of notch-loaded patch to remove the unwanted out-of-phase current regions. It is shown that a combination of the fractal-slot and notch loading technique can achieve significant improvement in SLL, return loss, and bandwidth of notch-loaded TM 30 mode without compromising gain or symmetry of radiation patterns. Moreover, the method also gives an additional degree of freedom to improve the impedance matching without changing the feed location. In addition, 2 times improvement in impedance bandwidth is also demonstrated. A prototype of the antenna is fabricated to verify the proposed method. The proposed antenna shows a measured gain of 13 dBi with a low SLL of -16 dB. Furthermore, it shows symmetrical patterns in both planes with cross-polarization (X-pol) levels of less than 35 dB. An under-sampled 4x4 array of the proposed antenna is also presented by utilizing its low SLL property to simplify the complexity of feed networks in high gain array antennas. The array offers the same directivity and SLL as that of an 8x8 array of fundamental mode rectangular patch elements in the same area.INDEX TERMS higher order mode patch, TM 30 mode, high gain antenna, low sidelobe level antenna, undersampled array

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A compact TM03 mode penta‐polarization agile MSA for interference mitigation in 5G ultra‐dense point to point environment

Pal

Patra

Gupta

2022

Int J RF Mic Comp-Aid Eng

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Signal interference in the recent 5G ultra‐dense environment is becoming severe due to the co‐existence of large RF nodes operating in the constrained spectrum. In this article, a polarization agile approach for the designing of an RF system is studied to mitigate interference issues besides the communication and signal processing approach. A compact single‐fed single layer penta‐polarization agile higher‐order microstrip patch is analyzed probably for the first time in the literature. The proposed antenna possesses a very low profile of less than 0.01 λ (λ free‐space wavelength). Reconfigurable orthogonal feeding with switches is connected with the horizontal and vertical patch edges. Subsequently, these are excited separately and simultaneously using switchable PIN diodes and appropriate bias networks to realize horizontal, vertical, and 45° slant polarization states. Successively, diagonal patch corners are truncated to initiate right and left‐hand circular polarizations. Slots are etched on specific orientation of currents on the patch surface to improve side‐lobe levels. A prototype is analyzed, simulated, and fabricated at TM03 mode and operating at 5.8 GHz band with penta‐polarization agility. A consistent 11 dBi realized broadside gain is measured covering the 10 dB reflection loss and 3 dB axial ratio bandwidth in both the principal planes.

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Bandwidth-Enhanced Miniaturized Patch Antenna Operating at Higher Order Dual-Mode Resonance Using Modal Analysis

Cited by 24 publications

References 18 publications

Miniaturized design of coupled bi‐element array antenna using sequential inductive and interdigital capacitive circuits

Miniaturized design of coupled bi‐element array antenna using sequential inductive and interdigital capacitive circuits

Improving the Sidelobe Level, Return Loss and Bandwidth of Notch-Loaded TM₃₀ Mode Patch via Fractal-Slot

A compact TM03 mode penta‐polarization agile MSA for interference mitigation in 5G ultra‐dense point to point environment

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Bandwidth-Enhanced Miniaturized Patch Antenna Operating at Higher Order Dual-Mode Resonance Using Modal Analysis

Cited by 24 publications

References 18 publications

Miniaturized design of coupled bi‐element array antenna using sequential inductive and interdigital capacitive circuits

Miniaturized design of coupled bi‐element array antenna using sequential inductive and interdigital capacitive circuits

Improving the Sidelobe Level, Return Loss and Bandwidth of Notch-Loaded TM30 Mode Patch via Fractal-Slot

A compact TM03 mode penta‐polarization agile MSA for interference mitigation in 5G ultra‐dense point to point environment

Contact Info

Product

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About

Improving the Sidelobe Level, Return Loss and Bandwidth of Notch-Loaded TM₃₀ Mode Patch via Fractal-Slot