[PDF] Top 20 Experiências de colaboração na escola: o que dizem os professores?

... Printed Microstrip Antenna [1] having a single layer, single feed compact slotted patch ...another rectangular slot at the upper right corner and rest is bilateral triangle at the lower ... See full document

... single antenna that can cover multiband ...of microstrip antenna, it is possible to approach applications requiring different frequencies can be operated simultaneously with only one antenna, ... See full document

... size patch antenna. Initially, the single element rectangular mi- crostrip antenna is designed to operate at frequency ...This antenna structure provides a good amount of gain and the ... See full document

... frequency microstrip antenna becoming very popular day by day for its various applications ...such application is in MIMO Rader ...frequency microstrip antenna, like use of ... See full document

... of antenna, an array of rectangular microstrip patches arranged in log-periodic way with proximity coupled feed line [3], I-shaped notches on the ground plane [4], U-shaped slot and partial ... See full document

... multi-mode antenna is demanded for person to person communication network which have been ...multi- band antennas contain a huge awareness for application towards multimode communication systems ... See full document

... of Microstrip Patch Antennas (MPA) for different ...using various techniques like array configuration [3], different feeding [4], and double L and U-slots in a patch with proper placement [5, ... See full document

... the patch effected directly on the resonant frequency, the effect of the thicker substrate is study from many researchers using different substrates for several applications in the communication using different ... See full document

... simple microstrip patch antenna to achieve negligible return loss and useful bandwidth for Wi-MAX frequency range applications and s band ...This antenna is fed with coaxial feeding ... See full document

... This antenna 3 activities is based on the operation of two pin diode, ...the antenna gives the resonant frequencies of ...the antenna gives resonant frequencies of ...the antenna gives the ... See full document

... Dual band Microstrip antennas for WiMAX applications using four rectangular ...The various parameters like return loss, gain, radiation pattern and bandwidth have been studied and plotted for ... See full document

... Multiband antenna and to enhanced the bandwidth and gain of Microstrip ...which Microstrip antenna patch is loading with two partially T- slot shaped, the shape of ... See full document

... Spiral Slot/different slots on a similar substrate ii) /circularly polarized radiation / RHCP radiation (Right Hand Circularly Polarized radiation iii)Tri-band or Multiband resonant frequencies ... See full document

... initiated antenna research in various directions, such as EBG,DGS and the combination of fractal shaped antenna elements and split ring resonator ...microstrip antenna. EBG structure ... See full document

... model various parametric measurements needed to supplement the future fabrication of antenna has been studied in ...Dipole Antenna Integrated with Dual-Band Balun designed for Dual-Band ... See full document

... art antenna technology allows the use of different types and models of antennas,depending on the area of application ...considered. Microstrip antennas are now extensively used in various ... See full document

... an antenna that incorporates the technologies like WLAN, WiMAX, Bluetooth, IMT ...regular patch antenna has to be designed in a way that it alone caters to all these ...features. Various type ... See full document

... multiple band and progress the performance of the depicted antenna model, the ground plane is provided defected ground ...the microstrip antenna [8] for some advantages such as antenna ... See full document

... ISM band, C band, X-band, Ku-band or ...proposed antenna delivers high return loss and bandwidth where a single antenna can used for Tri-band ...high ... See full document

... monopole antenna for multiband operation of mobile handsets. The proposed antenna has a planar rectangular radiating patch in which a folded slit is inserted at the patch’s bottom ...the ... See full document