Banwidth Reconfigurable Filtering Antenna

Thangarasu, Deepa; Kingsly, Saffrine; Kanagasabai, Malathi; Alsath, M. Gulam Nabi; Sambandham, Padmathilagam; Bilvam, Sridhar; Palaniswamy, Sandeep Kumar; Rao, T. Rama

doi:10.1007/s11277-019-06159-7

Cited by 9 publications

(15 citation statements)

References 16 publications

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“…The return loss of the reconfigurable filtenna is shown in Figure 39B. Furthermore, in the year 2019, bandwidth reconfigurable filtering antenna was designed by Deepa Thangarasu et al 53 The filtering antenna filter characteristic is developed by coupling the resonators with the 50 Ω microstrip feed line of the monopole antenna. The energy of the transmission is coupled to the planar resonators, as shown in Figure 40.…”

Section: Reconfigurable Filtering Antennamentioning

confidence: 99%

“…58 The reconfigurable filtering antenna is developed by an array of Active Frequency Selective Surface placed in the aperture of the horn antenna. In this structure, by varying the state of diodes incorporated in the antenna, the whole arrangement starts F I G U R E 4 0 Prototype of bandwidth reconfigurable filtering antenna 53 to work as a filtenna, and operates over the frequency band from 1.8 to 2.8 GHz. Similarly, Devi Sowjanya Potti et al designed a bow tie-based reconfigurable filtering antenna with four operating states for cognitive radio applications, 59 which is operated at 3.5 GHz, 5.5 GHz UWB applications independently.…”

Section: Reconfigurable Filtering Antennamentioning

confidence: 99%

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Filtering antennas: A technical review

Gangwar¹,

Alam

Rajpoot³

et al. 2021

Int J RF Microw Comput Aided Eng

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Filtering antennas or filtennas realize both antennas and filter functions in a single structure with the sole purpose of reducing losses and size in the design of a radio system. This article presents a comprehensive view of various filtennas design techniques and their types, satisfying the requirements of different wireless communication standards. The codesign and synthesis approaches and multilayer structure, slot/slit, and parasitic elements are the frequently used techniques reported in the literature to date for the filtennas design. The codesign and synthesis approaches need an extra filter in the filtenna's design, thus making it more complex. Whereas multilayer, slot, and parasitic elements do not require additional filters, and help the radio design become compact in size. The individual elements, that is, filter and antenna used in the filtenna are designed by cutting slots, stacking, resonators, or metamaterial structures.There are two broad categories of filtennas, namely, planar and nonplanar. Most of the papers covered in this article are planar, whereas, under the non-

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Section: Reconfigurable Filtering Antennamentioning

confidence: 99%

Section: Reconfigurable Filtering Antennamentioning

confidence: 99%

Filtering antennas: A technical review

Gangwar¹,

Alam

Rajpoot³

et al. 2021

Int J RF Microw Comput Aided Eng

View full text Add to dashboard Cite

show abstract

“…Unlike the research reported in ref. [13][14][15][16][17][18][19][20][21], the proposed bandwidth switchable antenna works for the entire UWB band and the narrow band with high fractional bandwidth. 3.…”

Section: Megmentioning

confidence: 99%

“…A bandwidth reconfigurable filtering antenna is reported in ref. [15] where the UWB antenna is converted into a dualband radiator and the center frequencies are tuned using a pair of varactor diodes. This work is limited by the fact that the radiator loses its original UWB characteristics.…”

Section: Introductionmentioning

confidence: 99%

Bandwidth switchable MIMO antenna for automotive internet of things/ultra‐wideband communications

Ramakrishnan

Sivashanmugham

2021

Int J RF Mic Comp-Aid Eng

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A novel low-pass filter integrated ultra-wideband (UWB) antenna is presented in this paper for automotive internet of things (IoT)/UWB communications.The proposed filtering antenna comprises a UWB radiating element whose feedline is integrated with a low-pass filter section. The UWB antenna is constructed using a novel-radiating patch with curved edges to achieve reflection coefficient bandwidth extending from 2 to 13.2 GHz. A T-shaped low-pass filter with a 3 dB cutoff frequency of 3.85 GHz is designed and deployed adjacent to the feedline of the UWB radiator. The frequency selection is accomplished using PIN diodes, which enables feed selection making the antenna operate at two states, viz. narrow band (2.45 GHz), and UWB (2-13.2 GHz) states. Furthermore, a four-port vertically polarized MIMO antenna is constructed and the MIMO performance parameters are estimated. In both the operating states, the antenna offers an average gain (gain averaged over the four ports of the MIMO antenna) greater than 3 dBi throughout the operating bandwidth.A prototype MIMO antenna is fabricated and the results are presented. From the results, it can be inferred that the proposed antenna is suitable for high data rate IoT and UWB communications in the automotive environment.

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“…In the above research, they are all based on passive antennas without reconfigurable features. While the communication industry has blossomed, the congestion of radio frequencies has become a restrictive factor in the design of antennas [6]. For IR-UWB systems, it is important to take this problem into consideration.…”

Section: Introductionmentioning

confidence: 99%

Design of Reconfigurable Bandwidth Filtering Antenna and Its Applications in IR/UWB System

Zhang

Pan

2020

Electronics

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A reconfigurable bandwidth antenna for an impulse radio-UWB (IR/UWB) system design is illustrated in this paper. By adopting a continuously tunable low-pass filter by varactor at the feed of the antenna, the proposed antenna obtains a continuous tunable bandwidth from 1.02 GHz to 2.42 GHz. To ensure the identifiability of transmitted pulses in (IR-UWB) system, the antenna is analyzed in both frequency domain and time domain. The proposed antenna is valid with a system fidelity factor (SFF) above 0.8 while the bandwidth is tuning. The compact size, low cost, and tunable bandwidth with the identifiability of the transmitted pulse makes it suitable for UWB impulse radars to improve the utility ratio of frequency, and dynamic adjustment avoids interference of the IR-UWB in other communication frequency bands.

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Banwidth Reconfigurable Filtering Antenna

Cited by 9 publications

References 16 publications

Filtering antennas: A technical review

Filtering antennas: A technical review

Bandwidth switchable MIMO antenna for automotive internet of things/ultra‐wideband communications

Design of Reconfigurable Bandwidth Filtering Antenna and Its Applications in IR/UWB System

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