Rotatable Dual Band-Notched UWB/Triple-Band WLAN Reconfigurable Antenna

Lotfi, Parisa; Azarmanesh, Mohammad Naghi; Soltani, Saber

doi:10.1109/lawp.2013.2242842

Cited by 53 publications

(32 citation statements)

References 9 publications

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“…In particular, resonant strips or slots embedded in the antenna structure has drawn considerable attention as they require no extra footprint while creating band rejection at desired frequencies. Various designs that embed variants of split ring resonators (SRRs), complementary split ring resonators (CSRRs), and electromagnetic band‐gap structures (EBGs) have been reported with excellent band rejection characteristics at desired frequency bands …”

Section: Introductionmentioning

confidence: 99%

Mitigating the effects of time‐domain ringing in band‐notched UWB antennas

Hong

Park

2018

Micro & Optical Tech Letters

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There is interest in designing UWB antennas with band‐notches to reject other narrowband communication frequencies to avoid interference. However, such band‐notched characteristics inherently cause ringing in the time‐domain, thereby distorting the transmitted (or received) UWB pulses. The level of distortion may depend on the bandwidth and strength of the band‐notch, and it may degrade the performance of a short‐pulse based UWB system. This letter examines the ringing effects of band‐notches in the time‐domain and proposes a method to mitigate the ringing effect in the received signal using the E‐pulse technique.

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Section: Introductionmentioning

confidence: 99%

Mitigating the effects of time‐domain ringing in band‐notched UWB antennas

Hong

Park

2018

Micro & Optical Tech Letters

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“…The UWB antennas with the rejection of single band [4][5][6], dual bands [7][8][9], multiband [10], and reconfigurable bands [11] have been presented and investigated [4][5][6][7][8][9][10][11]. Some of the recently used approaches include using electromagnetic band-gap (EBG) structure [12,13], defected ground structure (DGS) [14], etching different slots on the patch or the ground [15,16], employing a band-reject filter into the feed line of the antenna [17], Varactor diodes [18], optical switches [19], PIN diodes [20], and rotational motion using a stepper motor [21]. Slots in the radiator have been widely implemented to obtain tunable notched-bands.…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable Band-Notched Slot Antenna Using Short Circuited Quarter Wavelength Microstrip Resonators

Atallah

Abdel‐Rahman

Yoshitomi³

et al. 2016

PIER C

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Abstract-In this paper, a CPW feed ultrawideband (UWB) slot antenna with a single reconfigurable notched band is proposed for overlay cognitive radio (CR) systems. The proposed antenna utilizes two symmetrical short circuited quarter wavelength resonators at the top layer and close to the ground to create a single notch. The switching reconfiguration is achieved by changing the length of resonators to prevent the interference to the primary users that are operating in the wireless local area network (WLAN) band at 5.725-5.825 GHz and the international telecommunication union (ITU) band at 8.05-8.4 GHz. The center frequency of the notched band can be tuned by selecting the length of the resonators, which is achieved by employing two ideal switches. Moreover, the proposed antenna has been fabricated and tested. The experimental data confirmed that the proposed design can selectively have a band notch over the two existent desired bands.

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“…However, additional electrical biasing lines may have an effect on the radiation performance of the antenna. In [12], a stepper motor was used for controlling different rejecting elements to obtain reconfigurable characteristics. Owing to the mechanical devices, the dimension and cost will be increased.…”

Section: Introductionmentioning

confidence: 99%

Tunable Band-Notched CPW-Fed Uwb Monopole Antenna Using Capacitively Loaded Microstrip Resonator for Cognitive Radio Applications

Atallah¹,

Abdel‐Rahman²,

Yoshitomi³

et al. 2016

PIER C

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Abstract-In this paper, a new compact coplanar waveguide (CPW) ultrawideband (UWB) antenna with an electronically tunable notched band is proposed for an overlay onto cognitive radio (CR) systems. The proposed antenna utilized a rectangular microstrip resonator in the bottom layer to create a single notched band and to realize tunability and miniaturization using varactors. The center frequency of the notched band can be electronically tuned by changing the effective electrical length of the microstrip resonator, which is achieved by employing two varactor diodes at the resonator edges. Moreover, the simple biasing of the varactor diodes has a small effect on the antenna performance. Experimental results show that the proposed antenna can selectively have a band notch over a continuous operating band about 1.44 GHz from 4.77 to 6.21 GHz to prevent the interference to the primary users that are operating in this band such as the WLAN (5.15-5.35 GHz; 5.725-5.825 GHz) and the WiMAX (5.25-5.825 GHz). Good agreement is found between the simulated and the measured data.

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Rotatable Dual Band-Notched UWB/Triple-Band WLAN Reconfigurable Antenna

Cited by 53 publications

References 9 publications

Mitigating the effects of time‐domain ringing in band‐notched UWB antennas

Mitigating the effects of time‐domain ringing in band‐notched UWB antennas

Reconfigurable Band-Notched Slot Antenna Using Short Circuited Quarter Wavelength Microstrip Resonators

Tunable Band-Notched CPW-Fed Uwb Monopole Antenna Using Capacitively Loaded Microstrip Resonator for Cognitive Radio Applications

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