A Circular Fractal Uwb Antenna Based on Descartes Circle Theorem With Band Rejection Capability

Ghatak, Rowdra; Biswas, Balaka; Karmakar, Anirban; Поддар, Д. Р.

doi:10.2528/pierc13011607

Cited by 32 publications

(23 citation statements)

References 25 publications

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“…Therefore, although the output signal at the terminal of the dual band-notched antenna is somewhat more distorted than that of the antenna without the notched bands, mostly in the ringing portion, the proposed antenna can still manage to receive good signals in the wide frequency range as the degradation in the fidelity factor from 0.940 to 0.912 is less than 3% only. These fidelity factors are higher compared with those of the antennas in [4,7].…”

Section: Resultsmentioning

confidence: 91%

“…However, the radiation pattern and the timedomain response of these antennas were negatively affected by the slot structures. The gain values were low at high frequencies [2,3], or the fidelity factor was only less than 0.9 [4]. Other antennas used filter structures around the feed systems [8,9].…”

Section: Introductionmentioning

confidence: 99%

“…To reject these interferences, various planar monopole UWB antennas with single or multiple band-notched characteristics have been presented [2][3][4][5][6][7][8][9]. Many of these antennas adopted several slots [2,[4][5][6][7] in the radiating patch and the ground plane, or parasitic strips [3] near the radiating patch to generate bandnotched characteristics. However, the radiation pattern and the timedomain response of these antennas were negatively affected by the slot structures.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Integrated Bluetooth/Imt-E and Uwb Planar Antenna Using SCRLH Resonator to Reject Wlan and Wimax Interferences

Hoang-The¹,

Nguyen-Manh²,

Lee³

et al. 2013

PIER C

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Abstract-A novel printed monopole antenna covering 2.4-2.484 GHz (Bluetooth), 2.5-2.69 GHz (IMT-E) and 3.1-10.6 GHz (UWB) frequency bands is presented. The entire frequency bands are obtained by a modified U-shaped radiator and a modified ground plane. To prevent possible interference between UWB systems and other existing wireless systems such as WLAN and WiMAX, a SCRLH resonator structure is placed next to the feed line. Characteristics of the Bluetooth and IMT-E bands are further enhanced by two quarter-wavelength strips added on each side of the radiator. The proposed antenna can be easily printed on a 1.6-mm-thick FR4 substrate with dimensions of 30 × 41 mm 2 . Simulation and experimental results show that the antenna yields an impedance bandwidth of 2.3-2.8 and 3-12 GHz with −10 dB reflection coefficient, except for the dual notched bands of 3.2-3.6 for WiMAX and 4.9-6.1 GHz for WLAN. The electrical characteristics in frequency and time domain show suitability of this antenna for use in UWB systems.

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Section: Resultsmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Integrated Bluetooth/Imt-E and Uwb Planar Antenna Using SCRLH Resonator to Reject Wlan and Wimax Interferences

Hoang-The¹,

Nguyen-Manh²,

Lee³

et al. 2013

PIER C

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“…Meander Tshaped patch and stepped impedance structure [7,8] can also be used for band-rejection applications. Additionally, embedding slots in radiating patch or in ground plane [9][10][11][12][13][14] is a effective method to obtain band-rejection characteristic. Bandwidth enhanced antennas [15,16] are also be researched.…”

Section: Introductionmentioning

confidence: 99%

Design of an Uwb Antenna With Adjustable Rejection Bandwidth Using Novel Dual-T Square Resonator

Min¹,

Hou²,

Zhong³

et al. 2016

PIER Letters

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Abstract-A novel UWB antenna with adjustable rejection bandwidth is proposed and fabricated. The proposed antenna consists of a monopole and a novel dual-T square resonator. The results demonstrate that a wide rejection bandwidth from 10.4 to 11.5 GHz can be achieved, and the rejection bandwidth can be adjusted by transforming the dimensions of dual-T square resonator. Moreover, reflection coefficient curve with two poles at one rejected bandwidth is also obtained which is induced by the proposed novel square resonator. In addition, to explain the mechanism of adjustable rejection bandwidth, the analysis of parametric study and electric field distributions of the design are given. The total volume of the antenna is 27 mm × 19 mm × 1 mm. Compared to other recent works, a simpler structure, wider rejection bandwidth and more compact size are the key features of the proposed antenna. Owing to its adjustable bandwidth and simple structure, the proposed antenna can be used in UWB communications applications to suppress the radio-frequency interference.

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“…Introducing slot is a very popular and easy approach in this regard. Various shaped slots have been implemented in the ground plane [7], and radiating patches [8][9][10][11][12], to filter out the unwanted frequency bands. Beside this slot geometry, use of split ring resonator [13], Hilbert curves [14], are another way to notch out the desired frequency band.…”

Section: Introductionmentioning

confidence: 99%

Dual Band Notched Uwb Monopole Antenna Using Embedded Omega Slot and Fractal Shaped Ground Plane

Biswas¹,

Ghatak²,

Karmakar³

et al. 2014

PIER C

Self Cite

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Abstract-This paper presents the development of an Ultra Wide Band (UWB) monopole antenna with dual band notch characteristics. Modified crown-square shaped fractal slots in the ground-plane are implemented to enhance the impedance bandwidth to around 58% as compared to conventional square monopole antenna without slots. Impedance bandwidth of the proposed antenna is approximately 114% with Voltage standing wave ratio (VSWR) < 2. In addition to this, two omega-shaped (Ω) slots have been incorporated in the radiating patch to render band-notch characteristics centered at 5.5 GHz band assigned to IEEE802.11a and HIPERLAN/2 as well as X-band for satellite communication centered at 7.5 GHz band. Measured antenna gain is stable over the entire UWB region except at the notch bands. Radiation pattern of the antenna show that the proposed antenna exhibits nearly monopole like E plane radiation patterns and omni-directional H plane radiation patterns throughout the band. A fabricated prototype is developed with close agreement between simulated and measured results.

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A Circular Fractal Uwb Antenna Based on Descartes Circle Theorem With Band Rejection Capability

Cited by 32 publications

References 25 publications

Integrated Bluetooth/Imt-E and Uwb Planar Antenna Using SCRLH Resonator to Reject Wlan and Wimax Interferences

Integrated Bluetooth/Imt-E and Uwb Planar Antenna Using SCRLH Resonator to Reject Wlan and Wimax Interferences

Design of an Uwb Antenna With Adjustable Rejection Bandwidth Using Novel Dual-T Square Resonator

Dual Band Notched Uwb Monopole Antenna Using Embedded Omega Slot and Fractal Shaped Ground Plane

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