Ultra‐wideband tapered patch antenna with fractal slots for dual notch application

Self Cite

The metamaterial elements and structures have been noticed for obtaining circular polarization (CP) while developing various procedures. In this paper, we have mentioned some of these cases and compared the metamaterial loads effect on antenna current distribution. We have classified them into four categories. The first case covers patch antenna based on composite right/left‐handed method, where the metamaterial has been used for changing the current distribution in the loop form. The second case has been achieved by radome and metasurface. In the third model, the interaction between feed and metamaterial load has been considered and the last case has been made by the metamaterial load with truncated structure. The metamaterial loading has been modeled based on Nicolson‐Ross or transmission/reflection techniques for extracting the permittivity and permeability. While the microstrip slot antennas are attractive for wider bandwidth, the truncated structure can change the current for achieving CP. Here, we have studied the antenna for wireless and WiMAX applications.

Section: Introductionmentioning

confidence: 99%

Metamaterial loads used in microstrip antenna for circular polarization: Review

Zarrabi

Pirooj

Pedram

2019

Self Cite

“…To accomplish this, various techniques have been adopted such as use of band-notched UWB antennas. [2][3][4][5][6][7][8][9][10][11][12] The available solutions of designing a bandnotched UWB antenna have several disadvantages like use of costly antenna substrates, 8,9 large antenna dimensions, 4,5,9,10 and complex antenna geometry. 13,14 Detailed dimensions, notch-technique, and performance of some of these antennas are summarized in a table at the end of this article.…”

Section: Introductionmentioning

confidence: 99%

An UWB trapezoidal rings fractal monopole antenna with dual‐notch characteristics

Puri¹,

Das

Tiary³

2019

An ultra‐wideband planar fractal monopole antenna with dual‐notch characteristics is presented in this article. The microstrip fed antenna consists of nested trapezoidal rings and defected ground plane. Measured results show that the proposed antenna operates with a 10 dB return loss bandwidth from 2.2 to 10.8 GHz with notch bands at (2500‐2690) MHz and (3300‐4200) MHz covering LTE 2500, WiMAX and part of C‐band.

“…So, fractal antenna structures are good candidates for UWB applications. In the literature, some UWB fractal antenna geometries are available …”

Section: Introductionmentioning

confidence: 99%

Flower‐shaped ultra‐wideband fractal antenna

Singhal

Singh

2019

A flower‐shaped ultra‐wideband fractal antenna is presented. It comprises a fourth iterative flower‐shaped radiator, asymmetrical stub‐loaded feeding line, and coplanar quarter elliptical ground planes. A wide operating band of 12.12 GHz (4.58‐16.7 GHz) for S 11 ≤ − 10 dB is achieved along with an overall antenna footprint of 15.7 × 11.4 mm2. In addition, other desirable characteristics, that is, omnidirectional radiation patterns, peak gain upto 5 dB, and fidelity factor more than 75% are achieved. A good agreement exists between the simulation and measured results. The obtained results illustrate that this antenna has wide operating range and compact dimensions than available structures.