CPW-Fed Fractal Slot Antenna for UWB Application

Hou, Zhi‐Ling; Xu, Haojun; Tian, Bangsen; Zeng, Xian-feng

doi:10.1155/2012/129852

Cited by 11 publications

(8 citation statements)

References 12 publications

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“…Conventional antennas were designed and developed such that they work in narrow frequency ranges. But broadband and ultra wideband antennas have proved to be working in the wider range of the spectrum . Slot antennas which are said to be belonging to the wideband family, have the advantages of low cost and ease of fabrication.…”

Section: Introductionmentioning

confidence: 99%

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Gain and Bandwidth Investigations of a Novel PIFA Antenna employing Partial Ground at 2.3 GHz for WiMax/WiFi/WLAN Applications

Raviteja¹,

Lakshmi²

2019

Micro & Optical Tech Letters

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This paper deals with a modified planar inverted F‐antenna designed to operate at 2.3 GHz. The modifications are done with an intention of achieving wide bandwidth. It involves the simulation of a basic PIFA, for which dual U‐Slots are deployed and in order to obtain wider bandwidth the concept of the partial ground is taken into consideration. The main motivation behind this is to achieve an impedance bandwidth over 1 GHz which will prove to be useful in addressing several types of wireless and mobile applications. The simulated findings show that proposed PIFA achieved a bandwidth of 1.35 GHz (55.9%) with a gain close to 4.98 dB. The new antenna's size 20 mm × 10 mm (L1 × L2 mm) was compact and the fabrication cost is also less. The fabricated prototype was tested and measured and a good agreement was observed between the simulated and the measured results.

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Section: Introductionmentioning

confidence: 99%

“…But broadband and ultra wideband antennas have proved to be working in the wider range of the spectrum. 7 Slot antennas which are said to be belonging to the wideband family, have the advantages of low cost and ease of fabrication. PIFA also has the disadvantage of narrow bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Gain and Bandwidth Investigations of a Novel PIFA Antenna employing Partial Ground at 2.3 GHz for WiMax/WiFi/WLAN Applications

Raviteja¹,

Lakshmi²

2019

Micro & Optical Tech Letters

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“…Recently, high data‐rate and low‐cost communication systems have attracted much attention because of a plethora of applications. The ultra‐wideband (UWB) technique is a good candidate to meet the data‐rate and cost requirements and has been widely studied . In the UWB communication systems, one of the key issues is to design a compact antenna which can provide wide‐impedance bandwidth and good radiation patterns.…”

Section: Introductionmentioning

confidence: 99%

A CPW‐fed wide‐slot antenna with reconfigurable notch bands for UWB and multi‐band communication applications

Mittra

2013

Micro & Optical Tech Letters

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handling is enough for some applications with a following power amplifier used to amplify the RF pulses.The switching time of the RF-pulse former was measured based on the RF pulse's envelope observed on the digital oscilloscope HP 54124T. The 35-GHz CW signal is gated by the control impulses generated from the impulse generator at the pulse repetition frequency of 100 KHz. The inverters integrated in the RF-pulse former sharpen the rising and falling edges of control impulses, hence eliminating external effects, such as measurement cables and bonding wires, to the switching speed of the RF-pulse former which is mainly determined by the small gate resistor and gate-source capacitor of the MOSFET transistors. The envelope of the 35-GHz RF pulses at the output of the RF-pulse former can be clearly seen on the digital oscilloscope triggered by the trigger signal produced from the impulse generator. Figure 6 shows the measured 0.8-ns RF pulse and its spectrum. There is no RF leakage seen from the measured spectrums; the leakage, if any, is smaller than the magnitude of the actual RF pulse, which demonstrates the ultra-high isolation of the RF-pulse former. From Figure 6(a), the 10-90% rising time and 90-10% falling time of the RF-pulse former are determined to be 136 and 70 ps, respectively. The total measured switching time of 206 ps is 26 ps larger than the simulated result due to the delay in the inverters. The small switching time of 206 ps allows the RF-pulse former to produce very narrow RF pulses for high resolution radar and high-data-rate communication systems. Figure 7 shows the measured 200-ps RF pulse, demonstrating the possibility of generating very narrow pulses.ABSTRACT: In this article, we present a compact wide-slot antenna with reconfigurable notch bands, for ultra-wideband (UWB) and multiband communication applications. The dual band-notch characteristics are realized by using three open-ended stubs inserted into the fork-like radiating element, and the reconfigurable characteristics are achieved by integrating ideal switches in the stubs. By controlling the ON/OFF states of the ideal switches, the proposed antenna can function either as a UWB antenna with two notch-bands, or a single notch-band UWB antenna, or even a multiband antenna. The simulation and measurement results show that the proposed antenna is suitable for UWB as well as multiband communication systems.

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“…There are several CPW fed antennas presented in the literature for UWB applications [6][7][8][9][10][11][12][13][14]. Antenna reported in [6] is CPW-fed fractal slot antenna which is having omni-directional radiation patterns over the operating frequency band. Another CPW-fed ultra-wideband (UWB) antenna with dual band-notched characteristics presented in [7] has little interference among WLAN and WiMAX.…”

Section: Introductionmentioning

confidence: 99%

A CPW-Fed Triangular Monopole Antenna with Staircase Ground for UWB Applications

Kulkarni¹,

Kasabegoudar

2013

WCMC

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Abstract:In this paper, a monopole antenna with triangular shaped patch based on coplanar waveguide (CPW)-feed is presented. The proposed antenna comprises a planar triangular patch element with a staircase ground which offers ultra wide bandwidth. The impedance bandwidth can be tuned by changing staircase shaped ground parameters (number of steps, step length, and/or its width). The overall size of the antenna is 28mm×26mm×1.6mm including finite ground CPW feeding mechanism. The antenna operates in the frequency range from 3.2-12GHz covering FCC defined UWB band with more than 100% impedance bandwidth. Stable omni-directional radiation patterns in the desired frequency band have been obtained. Measured data fairly agree with the simulated results.

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CPW-Fed Fractal Slot Antenna for UWB Application

Cited by 11 publications

References 12 publications

Gain and Bandwidth Investigations of a Novel PIFA Antenna employing Partial Ground at 2.3 GHz for WiMax/WiFi/WLAN Applications

Gain and Bandwidth Investigations of a Novel PIFA Antenna employing Partial Ground at 2.3 GHz for WiMax/WiFi/WLAN Applications

A CPW‐fed wide‐slot antenna with reconfigurable notch bands for UWB and multi‐band communication applications

A CPW-Fed Triangular Monopole Antenna with Staircase Ground for UWB Applications

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