- #MICROSTRIP LINE CST MICROWAVE STUDIO PDF PATCH#
- #MICROSTRIP LINE CST MICROWAVE STUDIO PDF SOFTWARE#
In the design of planar antennas, the most common feeding techniques are the microstrip-fed and the coplanar waveguide- (CPW-) fed. The use of different and cheaper dielectric substrates such as paper, or PET, is possible, of course, but it probably will lead to a nonnegligible decrease of the robustness of the final antenna. We decide to use a flexible but robust dielectric substrate (ARLON AD250 with 0.5 mm thickness), in order to limit the effect of the environment over the antenna performance. In this work, we present a multiband printed antenna, working both in the S and in the C frequency bands (2.45 GHz, 3.5 GHz, and 5.2 GHz), which meets the requirements of different wireless communication standards, such as IEEE 802.11, HiperLan, and Bluetooth. For example, paper and textile substrates are likely subjected to discontinuities and fluids absorption, PET and paper have relatively high losses, and paper is very sensitive to humidity and is not robust to bending and rolling. However, on the other hand, these substrates can be severely affected by the environmental conditions. Flexible antennas can be designed on textile substrates, paper, PET, Kapton, adhesive-layer substrates, and so on. As a matter of fact, if compared with traditional planar antennas fabricated on rigid materials, they offer light weight, small thickness, low profile, and an easy mounting over conformal surfaces. In the last years, flexible technologies are becoming very popular in a number of wireless applications such as health monitoring systems and flexible displays and sensors, because of the many advantages offered by the antennas fabricated on these flexible substrates. It is particularly suitable for multiprotocol WLAN, WiMAX, and UWB wireless communications, and, thanks to a reduced parasitic coupling with the radio frequency circuitry, also in communication systems and radio base stations and, in general, for all the emerging applications of the wireless technology. In particular, a dipole printed on a thin, low-permittivity dielectric substrate and having high operational bandwidth and low radiated signal distortion has been proposed in.
![microstrip line cst microwave studio pdf microstrip line cst microwave studio pdf](https://image.slidesharecdn.com/cst-trainingcoremodule-antenna-2-140520180247-phpapp02/95/cst-training-core-module-antenna-2-1-638.jpg)
Therefore, several different multiband WLAN planar antennas have been proposed in recent years, showing either a multiband or a tuneable behavior. The use of multiband antennas is the best choice, because it reduces the numbers of antennas to be mounted in the communication system and can allow satisfying the requirements of different wireless communication systems, which can share the same multiband antenna, such as Wireless Local Area Network (WLAN) and IEEE 802.16 Worldwide Interoperability for Microwave Access (WiMAX), with a substantial saving of space, cost, and complexity realization of the wireless system itself. As a matter of fact, planar antennas are a very common choice for Universal Mobile Telephone Systems (UMTS), Synthetic Aperture Radars (SAR), and Radio-Frequency Identification (RFID) systems.
#MICROSTRIP LINE CST MICROWAVE STUDIO PDF PATCH#
Microstrip patch antennas have found many applications in wireless communication systems, because of their light weight, low profile, low cost, high performance, and compact size, besides an easy design, fabrication, and integration into frontend circuits.
![microstrip line cst microwave studio pdf microstrip line cst microwave studio pdf](http://ee.mweda.com/imgqa/eboard/Antenna/rf-5wv3vi4itwt.png)
In modern wireless systems, different bands of the frequency spectrum are used to fulfil the high data rate required in the communications, and the antennas of these communication systems must operate in different frequency bands (multiband antennas). The proposed structure can be used also as a conformal antenna, and its frequency response and radiated field are satisfactory for curvatures up to 65°. Moreover, it has a compact size, is very easy to realize, and presents a discrete out-of-band rejection, without requiring the use of stop-band filters. The comparison between simulated and measured results shows that the proposed antenna can be used for wireless communications for WLAN systems, covering both the WLAN S-band (2.45 GHz) and C-band (5.2 GHz), and the Wi-Max 3.5 GHz band, with satisfactory input matching and broadside radiation pattern.
![microstrip line cst microwave studio pdf microstrip line cst microwave studio pdf](https://demo.vdocuments.mx/img/378x509/reader024/reader/2021021923/55c595d4bb61ebe90d8b45a4/r-1.jpg)
#MICROSTRIP LINE CST MICROWAVE STUDIO PDF SOFTWARE#
The antenna has been designed using a general-purpose 3D computer-aided design software (CAD), CST Microwave Studio, and then realized. The antenna is fed by a proximity-coupled microstrip line, and it is printed on a flexible substrate. A multiband printed microstrip antenna for wireless communications is presented.