UWB antenna with triple notched bands based on folded multiple-mode resonators

Xu, Feng; Chen, X.; Wang, X.-A.

doi:10.1587/elex.9.965

Cited by 10 publications

(3 citation statements)

References 7 publications

(7 reference statements)

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“…Introducing resonant structures on the radiating patch or feed line has been attempted to notch the unwanted narrowband [11], [12]. Stubs loading onto the antenna structure is a frequently used technique for incorporating notch bands into wideband antennas.…”

Section: Introductionmentioning

confidence: 99%

An Ultra-Wideband Antenna with Triple Band-Notched Characteristics for Wearable Application

A. Rashid,

Shah,

Majid

et al. 2024

IJIE

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This work presents a compact UWB antenna with triple band-notched at WiMAX (3.2 GHz to 3.7 GHz), C-band (3.7 GHz to 4.2 GHz) and WLAN (5.15 GHz to 5.35 GHz) for wearable applications. The UWB antenna is fabricated on a semi-flexible thin FR-4 substrate. In order to reduce the complexity, only two slots are introduced on the radiating patch instead of three slots to reject each narrow band frequency. In this case, one slot rejects a combination of WiMAX and C-band and the other slot rejects the WLAN frequency band. The UWB antenna on the thin FR-4 material has an overall size of 21×16 mm2, which is very compact and thus, suitable for wearable applications without causing discomfort when worn on-body. Although the antenna is small in size, the performance is not compromised. The UWB antenna has the frequency range from 2.51 GHz to 12.09 GHz, maximum radiation efficiency of 100% and maximum gain of 4 dBi. Nevertheless, the antenna is able to reject the WiMAX and C-band as well as the WLAN band. The simulated specific absorption rate (SAR) results show that the antenna complies with the SAR limit Federal Communication Commission (FCC) and International Commission of Non-Ionizing Radiation Protections (ICNIRP) standards for 1 mW input power. Bending investigations performed on different diameters of Styrofoam cylinders shows that the frequency range and the notch bands are not very much affected.

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Section: Introductionmentioning

confidence: 99%

An Ultra-Wideband Antenna with Triple Band-Notched Characteristics for Wearable Application

A. Rashid,

Shah,

Majid

et al. 2024

IJIE

View full text Add to dashboard Cite

show abstract

“…However, they all have a narrow operating bandwidth, making them unable to meet the requirements for UWB applications. In order to remove the frequency constraint in operating, the method of using the multimode resonator (MMR) is reported in [9][10][11][12]. MMR was initially applied to the design of the broadband filter [13], which can generate multiple resonant modes and form an ultra-wide bandwidth by superimposing several modes.…”

Section: Introductionmentioning

confidence: 99%

An Ultra-Wideband Integrated Filtering Antenna with Improved Band-Edge Selectivity Using Multimode Resonator

Zhang,

Lei,

Zhang

et al. 2023

Electronics

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In this paper, a novel design of ultra-wideband (UWB) filtering antenna integrated with the multimode resonator (MMR) bandpass filter is proposed, aiming to enhance band-edge selectivity. At the beginning, a MMR bandpass filter is modified and studied. Based on the classic MMR filter, the proposed filter folds the microstrip transmission line to reduce its size while retaining the original filtering performance. Moreover, an open stub and short stub are added to the proposed filter to obtain a transmission of zero. Then, the folded filter with stubs and a UWB bow-tie antenna are integrated together to form a filtering antenna. The open stub and short stub in the MMR structure enhance the antenna’s upper and lower band-edge selectivity, respectively. Series of parameters are studied to analyze their influences on the frequency selection range and band-edge characteristics. Compared with the original UWB dipole antenna, such an integrated approach brings many benefits. Firstly, the UWB filter not only broadens the bandwidth of the device, but also improves band-edge selectivity, which can eliminate the unwanted passband near the operating frequencies. Secondly, the integrated system reduces the size and cost of the devices, which is very important in the miniaturization of wireless systems. In this research, the reflection coefficient (S11) of integrated filtering antenna is lower than −10 dB between 2.92 and 11.51 GHz, and it has a fractional bandwidth of 119%. The measured shape factor is 1.027 (very close to 1), which proves that this design has a better band-edge selectivity. Simultaneously, good radiation characteristics are also attained, with a maximum realized gain of 6 dBi. Theoretical simulation results are similar to the experimental results. The measurement results of the manufactured device effectively validate that its performances have reached the simulation design requirements.

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“…However, there are several methods to reject the existing narrow band from the ultra-wide-band frequency, we can use filter to reject these narrowband services but the system complexity will be increased. Some advanced antennas with band-notched specifications have been exhibited to deal with this challenge [2][3][4][5][6][7]. The structure of radiofrequency can be corrected by removing filters in respective designs.…”

mentioning

confidence: 99%

A U-Shaped Printed UWB Antenna with Three Band Rejection

Kumar¹,

Rani

Singh

et al. 2020

Computational Methods and Data Engineering

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Design approach for triple-band rejection characteristics of compact printed UWB antenna is proposed. This design can avoid interference between UWB and narrowband such as WLAN (5.5 GHz), WiMax (3.4 GHz), and downlinks of X band (7.5 GHz) for satellite communication application. To achieve triple-band rejection characteristic double folded multiple mode resonators are placed symmetrically to the feed line. The antenna comprises a U-shaped metal patch, ground plan with rectangular notch on the backside, and 50 microstrip feed line for the impedance matching. The antenna attains an impedance bandwidth range between 3.1 and 10.6 GHz with VSWR < 2, omitted the bands of WiMax (3.2-3.6 GHz), WLAN (4.9-6.1 GHz), and downlinks. Keywords Microstrip antenna • WiMax • Multiple mode resonator • VSWR • HFSS 1 Introduction Ultra-Wideband technology grown to be very popular when the communication exhibited the 3.1-10.6 GHz range for unlicensed band in the year 2002 [1]. UWB is extensively being used in numerous applications on account of its excessive data

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UWB antenna with triple notched bands based on folded multiple-mode resonators

Cited by 10 publications

References 7 publications

An Ultra-Wideband Antenna with Triple Band-Notched Characteristics for Wearable Application

An Ultra-Wideband Antenna with Triple Band-Notched Characteristics for Wearable Application

An Ultra-Wideband Integrated Filtering Antenna with Improved Band-Edge Selectivity Using Multimode Resonator

A U-Shaped Printed UWB Antenna with Three Band Rejection

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