Temat: microstrip - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Modern micropattern gas detectors
Autorzy:: Bochenek, M.
Koperny, S.
Kowalski, T. Z.
Tematy:: microstructure detector
microstrip
GEM
MICROMEGAS
capillary plate; Pokaż więcej
Wydawca:: Instytut Chemii i Techniki Jądrowej
Powiązania:: https://bibliotekanauki.pl/articles/148102.pdf Link otwiera się w nowym oknie
Opis:: In all measurement systems of radiation, the detector is the most important part. We can say that it is the heart of these systems. Gas detectors are still the most popular type of detector. Modern technologies allow manufacturing gas detectors having a very good energy and position (2D) resolution, high efficiency, large effective area, small count rate effect, radiation hardness, good signal-to-noise ratio and not complicated structure. These detectors are very fast and can stably work for a long period of time. One advantage of gas detectors is the possibility to read not only charge, but also UV light generated in the detector. In this paper we want to make a review of construction, mechanical properties, performance and possible applications of the following so-called micropattern gas detectors (MPGD): microstrip gas chamber (MSGC), gas electron multiplier (GEM), MICRO-MEsh GAseous Structure (MICROMEGAS) and capillary plate detector (CP).
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: A lightweight planar antenna element with optimized feed for use onboard spacecraft
Autorzy:: Wincza, K.
Kabacik, P.
Tematy:: microstrip antennas
spaceborne antennas
circularly polarized antennas; Pokaż więcej
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Powiązania:: https://bibliotekanauki.pl/articles/307761.pdf Link otwiera się w nowym oknie
Opis:: This paper is a report on low gain antennas (LGAs) manufactured with bonded lightweight materials. These antennas can sustain large temperature variations and are capable of functioning in modern miniature spacecraft, mainly in the telemetry, command and ranging (TC&R) links. When made of cheaper materials, the proposed circularly polarized antenna can be widely used in the base stations of short-range wireless systems. The recommended operating frequencies are between 1 and 8 GHz. One major technical consideration is obtaining the required high quality of circular polarization with as low space demands as possible. A lightweight 90? polarizer, printed on a dielectric membrane and operating over a broad bandwidth, is proposed for the antenna feed. Owing to the bandwidth advantage of the polarizer and the use of carefully designed aperture coupled feed, the electrical characteristics maintain good properties over a wide frequency range (15%).
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Optimizing circular polarization within a beam of patch antenna elements
Autorzy:: Hornik, M.
Hornik, P.
Guzda, D.
Kabacik, P.
Tematy:: lightweight antennas
circularly polarized antennas
microstrip antennas; Pokaż więcej
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Powiązania:: https://bibliotekanauki.pl/articles/307578.pdf Link otwiera się w nowym oknie
Opis:: The paper presents the results of an investigation into patch antenna elements that would be capable of pro- viding good circular polarization not only in the broadside direction, but also over a wide range of elevation angles.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Electrically Small Microstrip Antenna Based on Magnetodielectric Materials
Autorzy:: Stepanyan, Ararat
Haroyan, Hovhannes
Hakhoumian, Arsen
Tematy:: electrically small antenna
magnetodielectric material
microstrip antenna; Pokaż więcej
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Powiązania:: https://bibliotekanauki.pl/articles/2142304.pdf Link otwiera się w nowym oknie
Opis:: An electrically small microstrip patch antenna based on high permittivity dielectric and magnetodielectric materials (MDM) is investigated in this paper. The basic parameters of microstrip patch antennas based on high dielectric and magnetodielectric materials are compared with other solutions. The analysis shows that an MDM-based patch surface is 7.14 times smaller when compared with a suspended plate antenna. The use of MDM improves bandwidth and offers perfect impedance matching between the material and free space, over a much wider bandwidth.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Designing a Compact Microstrip Antenna Using the Machine Learning Approach
Autorzy:: Sharma, Kanhaiya
Pandey, Ganga Prasad
Tematy:: artificial neural network
dual band
microstrip antenna
notch; Pokaż więcej
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Powiązania:: https://bibliotekanauki.pl/articles/1839319.pdf Link otwiera się w nowym oknie
Opis:: This paper presents how machine learning techniques may be applied in the process of designing a compact dual-band H-shaped rectangular microstrip antenna (RMSA) operating in 0.75–2.20 GHz and 3.0–3.44 GHz frequency ranges. In the design process, the same dimensions of upper and lower notches are incorporated, with the centered position right in the middle. Notch length and width are verified for investigating the antenna. An artificial neural network (ANN) model is developed from the simulated dataset, and is used for shape prediction. The same dataset is used to create a mathematical model as well. The predicted outcome is compared and it is determined that the model relying on ANN offers better results.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Characterization of a Split Circle Element for Microstrip Reflectarrays
Autorzy:: Sayidmarie, Khalil H.
Yahya, Likaa S.
Tematy:: microstrip antenna
reflectarray antenna
split circular
X band; Pokaż więcej
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Powiązania:: https://bibliotekanauki.pl/articles/24200749.pdf Link otwiera się w nowym oknie
Opis:: A split circular element is proposed as a unit cell for reflectarray antennas. The unit cell is derived from a circle divided into four equal sectors. The radius of two oppositely located sectors is then scaled by a certain factor to form the proposed shape. The CST Microwave Studio Suite software simulator was used to investigate the performance of the proposed unit cell, which was evaluated using Floquet port excitation. The designed element's reflection phase range was compared to that of a conventional circular patch. Four scenarios of varied substrate characteristics are investigated for the antenna to establish the best performance parameters. The simulations showed that a basic substrate with a thickness of 0.16 mm and a dielectric constant of 3.2, backed by a 3 mm foam with a dielectric constant of 1.05 and a scaling factor of 0.72 offers a wide phase range of 601.3°. The obtained phase slope is 76.37°/mm or 134°/GHz.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: High Gain WAT Antenna for 38 GHz 5G Systems
Autorzy:: Przesmycki, Rafał
Bugaj, Marek
Tematy:: microstrip antenna
high gain
5G wireless system; Pokaż więcej
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Powiązania:: https://bibliotekanauki.pl/articles/27312942.pdf Link otwiera się w nowym oknie
Opis:: The article presents a high gain WAT microstrip antenna designed for 5G communication systems operating in the 38 GHz band. The antenna concerned has a compact structure with dimensions of 5. 16× 5. 05 mm. Rogers RT5880 laminate with a dielectric coefficient of 2. 2 and a thickness of 0. 254 mm was used as its substrate. The antenna works at a center frequency of 38 GHz and is characterized by a low reflection coefficient of – 29 .11 dB, a high energy gain of 7. 61 dB and a wide operating band of 1 .21 GHz (3. 18%). The paper presents an analysis of the simulation results and measurements of the device’s electrical parameters and radiation patterns.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: High Gain Linear 1×4 X-slotted Microstrip Patch Antenna Array for 5G Mobile Technology
Autorzy:: Agarwal, Samarth
Prachi, -
Tematy:: microstrip patch antenna
millimeter wave
tapered feed line; Pokaż więcej
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Powiązania:: https://bibliotekanauki.pl/articles/958056.pdf Link otwiera się w nowym oknie
Opis:: A linear 1×4 antenna array built on the Rogers RT/Duroid 5880 substrate is proposed in this paper to acquire high gain for 5G applications. The proposed design resonates at 38 GHz, i.e. in the Ka-band region, and has small patch dimensions of 5.5×2 mm. The design is simulated using CST studio. The main element consists of X-slot that provides a gain of 6.98 dB with the return loss of –24.25 dB whereas a linear array of 4 elements is made which is fed by the 50Ω m-line using the corporate feeding network which yields a gain of 13.84 dB, as well as the return loss is –15.72 dB. The centreto-centre spacing (d) of elements in the antenna array is 0.8λ.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Design and Analysis of Circular Slotted Microstrip Patch Antenna
Autorzy:: Bhattacharyya, Kaustubh
Thangjam, Rupanda
Goswami, Sivaranjan
Sarmah, Kumaresh
Baruah, Sunandan
Tematy:: impedance matching
microstrip
resonance frequency
complementary
split ring resonators; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/963802.pdf Link otwiera się w nowym oknie
Opis:: This paper presents a novel complementary CPWfed slotted microstrip patch antenna for operation at 2.4 GHz, 5.2 GHz and 6.3 GHz frequencies. The primary structure consists of the complementary split ring resonator slots on a patch and the design is fabricated on FR-4 epoxy substrate with substrate thickness of 1.6 mm. The described structure lacks the presence of a ground plane and makes use of a number of circular complementary SRRs along with rectangular slots on the radiating patch. The structure provides a wide bandwidth of around 390 MHz, 470 MHz and 600 MHz at the three bands with return losses of -11.5 dB, -24.3996dB and -24.4226 dB, respectively. The inclusion of the rectangular slots in the CSRR based slot antenna with stairecase structure improved the performance with respect to return loss.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Design of a Microstrip Filtering Antenna for 4G and 5G Wireless Networks
Autorzy:: Boddu, Ramesh
Deb, Arindam
Roy, Jibendu Sekhar
Tematy:: elliptical microstrip patch antenna
ﬁltering antenna
hairpin bandpass ﬁlter; Pokaż więcej
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Powiązania:: https://bibliotekanauki.pl/articles/24200731.pdf Link otwiera się w nowym oknie
Opis:: The ﬁltering antenna provides both radiation and ﬁltering features and is an important component for the RF front-end of wireless devices. The main function of a ﬁltering antenna is to reject out-of-band signals, thus reducing the interference from adjacent channels. The aim of the present work is to design a 2.6 GHz microstrip ﬁltering antenna for 4G and 5G global mobile services. The ﬁltering antenna is designed using a hairpin bandpass ﬁlter integrated with an elliptical microstrip aerial. Good impedance matching is obtained by using appropriate dimensions of the hairpin bandpass ﬁlter. The 10 dB return loss bandwidth of the ﬁltering antenna is approx. 5.7%, with the maximum gain for the elliptical ﬁltering antenna of approx. 2.2 dB. Good agreements between the measured and simulated results are obtained for the proposed ﬁltering antenna and the bandwidth covers almost the entire 2.6 GHz band.
Dostawca treści:: Biblioteka Nauki

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