Design of frequency reconfigurable multiband compact antenna using two PIN diodes for WLAN/WiMAX applications

Abdulraheem, Yasir I.; Oguntala, George; Abdullah, Abdulkareem S.; Mohammed, Husham J.; Ali, Ramzy A.; Abd‐Alhameed, Raed A.; Noras, James M.

doi:10.1049/iet-map.2016.0814

Cited by 119 publications

(69 citation statements)

References 16 publications

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“…A pin diode has been used to vary the antenna's bandwidth from narrow to wide, while varactor diodes have been used to continuously change the resonant frequency in the narrow band [4], making it more competitive for cognitive radio applications. A PIN diode-based multiband reconfigurable printed monopole antenna for WLAN/WiMAX was presented in [5]. A wide range of frequency tunability was achieved in a probe-feed patch antenna using voltage-controlled varactor diodes [6].…”

Section: Introductionmentioning

confidence: 99%

Frequency and Pattern Reconfigurable Antenna for Emerging Wireless Communication Systems

et al. 2019

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A printed and minimal size antenna having the functionality of frequency shifting as well as pattern reconfigurability is presented in this work. The antenna proposed in this work consists of three switches. Switch 1 is a lumped switch that controls the operating bands of the antenna. Switch 2 and Switch 3 controls the beam switching of the antenna. When the Switch 1 is ON, the proposed antenna operates at 3.1 GHz and 6.8 GHz, covering the 2.5-4.2 GHz and 6.2-7.4 GHz bands, respectively. When Switch 1 is OFF, the antenna operates only at 3.1 GHz covering the 2.5-4.2 GHz band. The desired beam from the antenna can be obtained by adjusting the ON and OFF states of Switches 2 and 3. Unique beams can be obtained by different combination of ON and OFF states of the Switches 2 and 3. A gain greater than 3.7 dBi is obtained for all four cases.

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Section: Introductionmentioning

confidence: 99%

Frequency and Pattern Reconfigurable Antenna for Emerging Wireless Communication Systems

et al. 2019

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“…These coupling effects degrade the actual MIMO antenna performance like gain, efficiency, and far‐field results. The mutual coupling overcome techniques are adapted like network placement, ground modification techniques, parasitic element approaches, metamaterial structures like split‐ring resonator (SRR) or complementary split‐ring resonator (CSRR), and lumped elements . Sometimes the structure itself produces enough isolation .…”

Section: Introductionmentioning

confidence: 99%

Four‐port shared rectangular radiator with defected ground for wireless application

Chouhan

Malviya²

2020

Int J Communication

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In this research work, a modified shared rectangular radiator is proposed for 5.7-GHz wireless application using multiple cuts and partially stepped ground. The shared design requires no isolating structure to decouple the ports. The proposed shared geometry produces >13 dB isolation in the 4.4-to 6.4-GHz operating band. The gain varies from 3.0 to 6.2 dBi, and radiation efficiency is >70 % in the band. The mutual coupling among the port is reduced by orthogonal arrangement of ports, and envelope correlation coefficient (ECC) is <0.04 in the presented band. Apart from this, isolation in the proposed shared radiator is enhanced by additional multiple cuts with stepped ground. The indooroutdoor suitability of multiple input multiple output (MIMO) antenna for isotropic and Gaussian medium is checked by mean effective gain (MEG) and specific absorption rate (SAR). The presented results of MEG and SAR fulfill the required safety norms as per the ITU for different environments. K E Y W O R D SECC, MEG, MIMO antenna, isolation, SAR, TARC

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“…In recent years, fourth-generation (4G) and fifth-generation (5G) wireless applications have been experiencing fast development [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Signal crosstalk, interference, and high costs have a big effect on the rapid development of radio frequency (RF) and microwave (MW) devices, while common-mode signal causes radiation power loss of up to 25% of the input power in the millimeter-wave (mmWave) spectrum (26)(27)(28)(29)(30)(31)(32)(33)(34)(35)(36)(37)(38)(39)(40) [17,18].…”

Section: Introductionmentioning

confidence: 99%

A Survey of Differential-Fed Microstrip Bandpass Filters: Recent Techniques and Challenges

Al‐Yasir

Parchin

Abdulkhaleq

et al. 2020

Sensors

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Differentially driven devices represent a highly promising research field for radio frequency (RF), microwave (MW), and millimeter-wave (mmWave) designers and engineers. Designs employing differential signals are essential elements in low-noise fourth-generation (4G) and fifth-generation (5G) communications. Apart from the conventional planar MW components, differential-fed balanced microstrip filters, as promising alternatives, have several advantages, including high common-mode rejection, low unwanted radiation levels, high noise immunity, and wideband harmonic suppression. In this paper, a comprehensive and in-depth review of the existing research on differential-fed microstrip filter designs are presented and discussed with a focus on recent advances in this research and the challenges facing the researchers. A comparison between different design techniques is presented and discussed in detail to provide the researchers with the advantages and disadvantages of each technique that could be of interest to a specific application. Challenges and future developments of balanced microstrip bandpass filters (BPFs) are also presented in this paper. Balanced filters surveyed include recent single-, dual-, tri-, and wide-band BPFs, which employ different design techniques and accomplish different performances for current and future wireless applications.3 of 25 between these designs follow each section. Section 6 shows the challenges and future development of differential-fed microstrip BPFs. Finally, Section 7 presents the conclusion of our review. Single-Band Differential Microstrip BPFsRecently, many single-band differential planar BPFs based on different techniques have been reported [39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56]. The main difference between these designs is the structures utilized. Several types of resonators and techniques can be used to obtain a single-band differential planar BPF with different performance. Generally, the common-mode noise suppression is an interesting topic for high-speed and high-frequency wireless applications. The common-mode noise signals can degrade the differential-mode transmitted signals as well as the entire power of such wireless applications. To suppress the common-mode signals, some researchers and engineers have proposed the use of a series of combinations of single-band differential-fed planar filters and transmission lines [39]. However, this technique will lead to a large area and so not suitable for new demands of compact systems. However, Ebrahimi et al. have proposed a new balanced BPF using dumbbell-shaped defected ground structures (DGSs) [42]. The proposed DGS resonator provides the option of implementing higher-order differential filters. Also, in comparison with similar techniques such as S-shaped complementary split-ring resonators (CSRRs), which have similar structures in common-mode and differential mode transmission [39], differential filters based on DGSs provide high common-mode attenuation by utilizing two separate equiv...

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Design of frequency reconfigurable multiband compact antenna using two PIN diodes for WLAN/WiMAX applications

Cited by 119 publications

References 16 publications

Frequency and Pattern Reconfigurable Antenna for Emerging Wireless Communication Systems

Frequency and Pattern Reconfigurable Antenna for Emerging Wireless Communication Systems

Four‐port shared rectangular radiator with defected ground for wireless application

A Survey of Differential-Fed Microstrip Bandpass Filters: Recent Techniques and Challenges

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