Frequency reconfigurable circular microstrip patch antenna with slots for cognitive radio

Labiod, Mohamed; Mahdjoub, Zoubir; Debab, Mohamed

doi:10.12928/telkomnika.v20i4.23761

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…This form of reconfiguration mechanism is extensively used in RF communication systems such as multiband mobile devices [8]. These frequency reconfiguration antennas allow for the continuous modification of one or more resonant frequencies, and frequency reconfiguration is frequently accomplished physically or electrically by changing the antenna size with switches [97], [98]. A dual-band reconfigurable antenna was designed and fabricated in [99].…”

Section: B Reconfigurable Performance Metricsmentioning

confidence: 99%

Recent Advancement of Wearable Reconfigurable Antenna Technologies: A Review

et al. 2022

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Wireless Body Area Network (WBAN) technology is gaining popularity in personal communication due to the expanding improvement in wireless technology. Wearable antennas are utilized in various WBAN applications including personal healthcare, entertainment, military, and many more due to their attractive characteristics and the potential for integrating lightweight, compact, low-cost, and adaptable wireless communications. A wearable reconfigurable antenna will allow a single antenna to operate at multiple resonant frequencies, radiation, polarization or hybrid between them, by using single or multiple active switching devices for signal transmission and reception in different parts of human body, rather than using multiple antennas. Over the years, several review papers were reported on wearable antennas which discussed the requirements and issues of wearable antennas in terms of their design, fabrication, and measurement. Nowadays, WBAN technology employs a single wearable reconfigurable antenna to perform multiple functions in different parts of human body. Recently, a significant amount of work has been carried out in the area of wearable reconfigurable antennas for WBAN applications. This paper presents a comprehensive review of the requirements and analysis needed for wearable reconfigurable antennas such as Specific Absorption Rate (SAR) for on-body analysis, investigation of the antennas in bending conditions, reconfigurable techniques and reconfigurable performance metrics.

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Section: B Reconfigurable Performance Metricsmentioning

confidence: 99%

Recent Advancement of Wearable Reconfigurable Antenna Technologies: A Review

et al. 2022

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“…In this case, the inserted notching structure allows the antenna to reject the 5G-6 GHz band, thus mitigating the interference of this sub-band with the UWB region. The dimensions of the notching slot are calculated using the following equation [26], while the slot's location is optimized through a parametric study carried out by simulations.…”

Section: Uwb Antenna With 5g Sub-6 Ghz Notch Bandmentioning

confidence: 99%

A Low Profile Ultra-Wideband Antenna with Reconfigurable Notch Band Characteristics for Smart Electronic Systems

et al. 2022

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This study describes the design and implementation of a small printed ultra-wideband (UWB) antenna for smart electronic systems with on-demand adjustable notching properties. A contiguous sub-band between 3–4.1 GHz, 4.45–6.5 GHz, or for both bands concurrently, can be mitigated by the antenna. Numerous technologies and applications, including WiMAX, Wi-Fi, ISMA, WLAN, and sub-6 GHz, primarily utilize these band segments remitted by the UWB. The upper notch band is implemented by inserting an open-ended stub with the partial ground plane; the lower notch band functionality is obtained by etching a U-shaped slot from the radiating structure. The basic UWB mode is then changed to a UWB mode, with a single or dual notch band, using two diodes to achieve reconfigurability. The antenna has a physically compact size of 17 × 23 mm2 and a quasi-omnidirectional maximum gain of 4.9 dBi, along with a high efficiency of more than 80%, according to both simulation and measurement data. A significant bandwidth in the UWB region is also demonstrated by the proposed design, with a fractional bandwidth of 180% in relation to the 5.2 GHz center frequency. Regarding compactness, consistent gain, and programmable notch features, the proposed antenna outperforms the antennas described in the literature. In addition to these benefits, the antenna’s compact size makes it simple to incorporate into small electronic devices and enables producers to build many antennas without complications.

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“…Infact, slots/slits have been used in the radiating patch and ground plane, to obtain multiband operations [1]- [10]. Reconfigurable antenna is one of the technique used by many researchers to design multiband antennas [11]. Metamaterials are the promising new candidates for designing multiband antennas [12]- [19].…”

Section: Introductionmentioning

confidence: 99%

A novel microstrip fed triple band patch antenna with TM10, TM02 and TM12 induced modes

Kinagi

Yadahalli

Patil³

2023

Bulletin EEI

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In this study, a patch antenna with three different operating frequencies (2.94 GHz, 4.5 GHz, and 5.7 GHz) is proposed. The dimensions of the antenna are as follows: 23.4 mm by 30.4 mm by 1.6 mm. The triple band characteristic may be achieved by adjusting the width of the quarter wave transformer (QWT), which in turn modifies the impedance matching in such a manner as to excite the TM10, TM02, and TM12 modes. These modes are able to have additional verification provided by the current distribution on the patch. Altering the width of the QWT provides the proposed antenna with the ability to fine-tune its resonant frequencies. At the resonant frequencies, the impedance bandwidths of -10 dB are 69 MHz, 40 MHz, and 110 MHz, respectively. 5.7 GHz has a gain of 1.5 dB, while 4.5 GHz has a gain of 0.7 dB, and 2.94 GHz has a gain of 2 dB. Additionally, this antenna finds its applications in wireless systems in the S and C bands of the frequency spectrum. The antennas are validated using a vector network analyzer (VNA) after being simulated with mentor graphics software three-dimensional electromagnetic modeling (3DEM) and analyzed with it.

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Frequency reconfigurable circular microstrip patch antenna with slots for cognitive radio

Cited by 5 publications

References 12 publications

Recent Advancement of Wearable Reconfigurable Antenna Technologies: A Review

Recent Advancement of Wearable Reconfigurable Antenna Technologies: A Review

A Low Profile Ultra-Wideband Antenna with Reconfigurable Notch Band Characteristics for Smart Electronic Systems

A novel microstrip fed triple band patch antenna with TM10, TM02 and TM12 induced modes

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