Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Dual-Band Antenna"”.
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Investigation of a Novel Dual Band Microstrip/Waveguide Hybrid Antenna Element
Microstrip antennas are low in profile, light in weight, conformable in structure and are now developed for many applications. The main difficulty of the microstrip antenna is its narrow bandwidth. Several modern applications like satellite communications, remote sensing and multi-function radar …
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Analysis and test of patch antennas for applications in dual-band and diversity systems
In this thesis, a study of patch antennas for applications in dual-band and diversity systems is presented. The dual-band capability is achieved with two patches that are stacked vertically and coupled by an aperture in the lower patch. The aperture provides a convenient way of adjusting the …
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Development of planar filters and diplexers for wireless transceiver front ends
… of this work is the design of compact microstrip bandpass filters and diplexers and the investigation of applications of these circuits in integrated transceiver RF front-end. The core of this thesis therefore presents the following stages of the work: - Analysis of coupled pseudo-interdigital …
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Direction Finding and Beamforming Techniques using Antenna Array for Wireless System Applications
… and the impact of the position-error of the antenna elements on the estimation accuracy is also studied. Then, several new efficient AOA methods for current wireless localisation systems are proposed. The estimation accuracy and computational complexity are compared with well-known AOA …
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Low Profile, Printed Circuit, Dual-Band, Dual-Polarized Antenna Elements and Arrays
Dual-band antenna elements that support dual-polarization provide ideal performance for applications including space-based platforms, multifunction radar, wireless communications, and personal electronic devices. In many communications and radar applications, a dual-band, dual-polarization antenna …
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Small, dual band, placement insensitive antennas
… properties. This limitation stems from the antenna choice for these labels - a dipole variant. The slot antenna, the effective inverse of the dipole, is shown to be an effective RFID antenna for environment-independent peel-and-stick applications. A miniaturization and multi-band design …
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Dvoupásmová wi-fi anténa pro komunikaci uvnitř auta
Bakalárska práca sa zaoberá návrhom dvojpásmovej planárnej antény na textilnom substráte pre použitie vo WLAN sieťach v ISM pásmach 2,4 a 5,8 GHz vnútri automobilu. V teoretickej časti sú stručne opísané základné poznatky o vlastnostiach a typoch planárnych mikropásikových antén, spôsoboch …