scispace - formally typeset
Search or ask a question
JournalISSN: 1937-8718

Progress in Electromagnetics Research C 

The Electromagnetics Academy
About: Progress in Electromagnetics Research C is an academic journal published by The Electromagnetics Academy. The journal publishes majorly in the area(s): Antenna (radio) & Microstrip antenna. It has an ISSN identifier of 1937-8718. It is also open access. Over the lifetime, 2487 publications have been published receiving 19192 citations. The journal is also known as: Pier C & Progress in electromagnetics research C.


Papers
More filters
Journal ArticleDOI
TL;DR: In this article, a quasi-planar antenna with enhanced and nearly constant gain is presented, which consists of a CPW-fed printed monopole and a short horn, both made out of a single substrate.
Abstract: A new ultra-wideband antenna with enhanced and nearly constant gain is presented. This quasi-planar antenna is composed of a CPW-fed printed monopole and a short horn, both made out of a single substrate. The measurements demonstrate an almost ∞at peak gain of 5:5dBi § 0:7dB from 2.5GHz to 15GHz with the average gain difierence in XZ plane is roughly 2dB up to 8GHz, which further rise to 6dB at 10GHz. The antenna also has a nearly linear phase response in this band. Well tested performance both in frequency and time domains, along with broad azimuth pattern, results in minimal ringing of a radiated pulse. The new antenna is suitable for establishing good line of sight link for UWB transmission and other broadband applications.

121 citations

Journal ArticleDOI
TL;DR: In this paper, a planar MIMO for UWB communications is presented, where two circular disc monopole antenna elements constitute the proposed UWB-MIMO antenna operating over the frequency band of 3.2{10.6GHz.
Abstract: A compact printed and planar Multiple-Input Multiple- Output (MIMO) for Ultra Wideband (UWB) communications is presented. Two circular disc monopole antenna elements constitute the proposed UWB-MIMO antenna operating over the frequency band of 3.2{10.6GHz. The isolation between the antenna ports has been enhanced to the value of more than 15dB throughout the frequency band of interest. This enhancement is achieved by taking the advantage of an inverted-Y shaped stub that is being inserted on the ground plane of UWB-MIMO antenna. The insertion of the stub has also facilitated reduction of the size of the antenna, i.e., overall dimensions of the antenna are 40 £ 68mm 2 . The proposed antenna is investigated both numerically and experimentally.

117 citations

Journal ArticleDOI
TL;DR: The simulation results show the superiority of the curvelet transform to the wavelet transform in the fusion of MR and CT images from both the visual quality and the peak signal to noise ratio (PSNR) points of view.
Abstract: This paper presents a curvelet based approach for the fusion of magnetic resonance (MR) and computed tomography (CT) images. The objective of the fusion of an MR image and a CT image of the same organ is to obtain a single image containing as much information as possible about that organ for diagnosis. Some attempts have been proposed for the fusion of MR and CT images using the wavelet transform. Since medical images have several objects and curved shapes, it is expected that the curvelet transform would be better in their fusion. The simulation results show the superiority of the curvelet transform to the wavelet transform in the fusion of MR and CT images from both the visual quality and the peak signal to noise ratio (PSNR) points of view.

97 citations

Journal ArticleDOI
TL;DR: In this article, a dual band circular microstrip patch antenna with an elliptical slot for future 5G mobile communication networks is presented, which has resonating frequencies of 28 GHz and 45 GHz, with bandwidths of 1.3 GHz and 1 GHz, respectively.
Abstract: This paper presents a dual band circular microstrip patch antenna with an elliptical slot for future 5G mobile communication networks. The antenna has resonating frequencies of 28 GHz and 45 GHz, with bandwidths of 1.3 GHz and 1 GHz, respectively. Efficiency of the antenna is 85.6% at 28 GHz and 95.3% at 45 GHz. The return loss at 28 GHz is −40 dB, with maximum gain of 7.6 dB while at 45 GHz return loss is −14 dB with maximum gain of 7.21 dB. The antenna is designed on a Rogers RT5880 (lossy) substrate with dielectric constant of 2.2 and loss tangent (tan δ) of 0.0013. The antenna has a compact size of 6× 6× 0.578 mm3. Array configuration is used to achieve 12 dB gain, required for mobile communication. The proposed array has resonance frequencies of 28 GHz, 34 GHz and 45 GHz with maximum gain of 13.5 dB and radiation efficiency of 98.75%. Centre series fed technique is used for the excitation of array. SAR value of array antenna obtained at 28 GHz is 1.19 W/kg, at 34 GHz is 1.16 W/kg, and at 45 GHz is 1.2 W/kg. CST Microwave Studio, a 3D simulating tool, is used for the antenna design and calculation of the antenna parameters along with the SAR analysis.

91 citations

Journal ArticleDOI
TL;DR: It is found that Adaptive Bacteria Foraging Algorithm (ABFA) is capable of improving the speed of convergence as well as the precision in the desired result.
Abstract: This paper proposes an improved adaptive approach involving Bacterial Foraging Algorithm (BFA) to optimize both the amplitude and phase of the weights of a linear array of antennas for maximum array factor at any desired direction and nulls in specific directions. The Bacteria Foraging Algorithm is made adaptive using principle of adaptive delta modulation. To show the improvement in making the algorithm adaptive, results for both adaptive and nonadaptive algorithms are given. It is found that Adaptive Bacteria Foraging Algorithm (ABFA) is capable of improving the speed of convergence as well as the precision in the desired result.

90 citations

Performance
Metrics
No. of papers from the Journal in previous years
YearPapers
2023142
2022198
2021149
2020174
2019168
2018159