Design of filtenna with bandstop element for Ultra-Wideband (UWB) applications

Miswadi, N. F.; Ali, Mohd Tarmizi; Tan, Mohd Nor Md; Redzwan, Fatimah Nur Mohd

doi:10.1109/i4ct.2015.7219640

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…Another technique in which an open-ended stub connected to feed line is used as a filter circuit for filtenna realization, as reported in Miswadi et al, 2015. 56 Here a compact size of (30 × 40) mm 2 filtenna is implemented to minimize the electromagnetic interference, which exists between wireless local area network (WLAN) and UWB operating frequencies. An optimized open stub length of λ g /4 has been used in the feed line to achieve band rejection characteristics, where λ g represents the guided wavelength of the transmission line at about 5.2 GHz.…”

Section: Dgs Based Filtennamentioning

confidence: 99%

“…The disadvantages include back propagation of waves and reduced gains in case of single slot filtenna, which can be attributed to use of large metallic ground plate (100 × 50) mm 2 , metallic screws for fixation and microstrip-to-SIW transition. 47,51 stepped impedance resonator, 48,49,52 square resonators, 54,55 open-ended stub 56,57 U-slot in ground plane, 5 Vias, 50 tapped-feed, 51 rectangular slot in ground plane, 2,52 circular slot in radiating element 54 Wi Max Square resonators 54 circular slot in radiating element 54 S-band Open-ended stub as resonator 58 rectangular slot in radiating element 58 C and X band Folded stub asresonators 59 Rectangular coupling slots in ground plane 59 As that of 62 , Yu et al in 2012 also used and integrated a third order SIW filter to planar coaxial collinear (COCO) antenna, resulting in a Ku-band filtenna. 63 Generally, COCO antenna can be obtained by placing metallic patches alternatively on top and bottom surfaces of substrate with series microstrip feed.…”

Section: Siw Based Filtennamentioning

confidence: 99%

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Filtennas for wireless application: A review

Mishra

Lalitha

2019

Int J RF Microw Comput Aided Eng

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In recent year, various filtenna circuits have been developed satisfying the objectives and prerequisites of wireless communication. Some of these developed designs are new or some are the improved version of previous works whereas the others are the combination of conventional methods. This article presents the review of filtenna circuits starting from the beginning to the improvements until date. This article starts with brief overview of various filters with their design strategies and ends in its implementation in filtenna designs followed by discussion on several filtenna designs in term of size and overall performances. Among various designs, bandpass, and bandstop filters are extensively used in filtenna realization as it provides a better selectivity in desired band. Various planar filtenna circuits, based on either defected ground structure (DGS) or resonator or SIW filters are reviewed and presented. Besides, planar filtennas, these filters are also integrated to the aperture of horn antennas for the realization of horn filtennas, applicable for high frequency operations. It is observed that SIW based filtennas exhibited narrow impedance bandwidth. This feature can be improved by doubling substrate layer as well as the number of metallic ways. Whereas, resonator based filtennas use resonator based filters along with DGSs to enhance impedance bandwidth as well as minimize mutual coupling and cross‐polar radiation. Apart from single element filtenna, filtenna arrays, and reconfigurable filtennas (including planar and horn reconfigurable filtennas) are presented. This review article may be helpful for beginners working on filtenna circuits and also such a review process is not available in the open literature to the best of author's knowledge.

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Section: Dgs Based Filtennamentioning

confidence: 99%

Section: Siw Based Filtennamentioning

confidence: 99%

Filtennas for wireless application: A review

Mishra

Lalitha

2019

Int J RF Microw Comput Aided Eng

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Design of Compact mm-wave Tunable Filtenna Using Capacitor Loaded Trapezoid Slots in Ground Plane for 5G Router Applications

Mahmoud

Montaser

2020

IEEE Access

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This paper introduces a compact millimeter-wave tunable filtenna with defected ground-plane structure (DGS) resonators for future fifth generation (5G) applications. An approach of adding the lumped and tunable elements within the DGS resonating structure is introduced. The designed filtenna has achieved a good reflection coefficient |S 11 | lower than −25 dB with a realized gain higher than 9 dB at any of the tuned frequency bands. A good agreement is achieved between the measurements and the simulated results those produced from both the finite difference time domain method (FDTD) Matlab coded and the CST-MWS simulation program. Furthermore, a circular array consists of 16 antenna elements is designed to be integrated into 5G router device. Different scenarios have been considered to show the array performance capability to maximize the array directionality in certain directions at certain frequency and in other directions with another frequency band. Finally, the scan pattern with the coverage efficiency are presented to illustrate the capability of the designed array as a key piece of future 5G routers. INDEX TERMS Filtenna, bandpass filter, tunable antennas, multi-polarized antenna, beamforming, optimization techniques, mm-wave 5G router.

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