Matches in SemOpenAlex for { <https://semopenalex.org/work/W2568800765> ?p ?o ?g. }
Showing items 1 to 96 of
96
with 100 items per page.
- W2568800765 abstract "Recently, there has been increasing interest and rapid growth in millimeter wave (MMW) antennas and devices for use in diverse applications, services and technologies such as short-range communication, future mm-wave mobile communication for the fifth generation (5G) cellular networks, and sensor and imaging systems. Due to the corresponding smaller wavelength, mm-wave frequencies offer the advantage of physically smaller antennas and circuits as well as the availability of much wider bandwidth compared to microwave frequencies. It is important to design millimeter wave antennas with high gain characteristics due to their high sensitivity towards atmospheric absorption losses. Moreover, millimeter wave antennas can have wide bandwidth and are suitable for applications in large frequency range.In this thesis, planar antennas are designed using substrate integrated waveguide (SIW) technology to have low losses, high quality factor, and low fabrication cost. Firstly, an antipodal fermi linear tapered slot antenna (AFLSTA) with sine corrugations at the side edges at 32.5 GHz is presented, which has a wide impedance bandwidth greater than 30 %, in order to support the high data rate channels. This antenna has a high gain of 12.6 dB and low side lobe levels (better than - 17 dB) in both E and H planes. This antenna is studied and analyzed in array and beamforming configurations to meet requirements of millimeter wave applications.In order to obtain high gain and narrow beamwidth pattern, a 1 × 8 AFLTSA array using SIW power divider network is presented. The design characteristics of the power divider network are presented in this thesis, which help in calculating the performance characteristics of this array structure. This array has an acceptable bandwidth of 14.7 % (30-35 GHz) with high gain of 20.4 dB and 8.35° 3 dB beamwidth. The side lobe levels are also improved using this SIW power divider network and are lower than -25 dB in E-plane and -15 dB in H-plane respectively. This antenna has a radiation efficiency greater than 93% over the whole bandwidth.The second research theme is beamforming of AFLTSA antenna. This beamforming is performed using multi-beam antenna concept in which the beam is rotated with a help of compact beamforming network and excitation from different input ports. The design methodology for 2 × 2 and 4 × 4 subarray beamforming networks is presented along with their current distributions illustrating the beamforming process. These subarrays possess wide impedance bandwidth between 29-36 GHz. Moreover, these subarrays are able to achieve gain between 12-15 dB with narrow beamwidth reaching till 11°. All the results along with the numerical data is presented in this thesis. This antenna is suitable candidate for millimeter wave wireless communications and imaging systems." @default.
- W2568800765 created "2017-01-13" @default.
- W2568800765 creator A5080110959 @default.
- W2568800765 date "2016-05-18" @default.
- W2568800765 modified "2023-09-27" @default.
- W2568800765 title "Analysis and Design of Substrate Integrated Waveguide-based Antennas for Millimeter Wave Applications" @default.
- W2568800765 cites W1511153158 @default.
- W2568800765 cites W1521070828 @default.
- W2568800765 cites W1521564387 @default.
- W2568800765 cites W1965187691 @default.
- W2568800765 cites W1976226059 @default.
- W2568800765 cites W2009447832 @default.
- W2568800765 cites W2048457731 @default.
- W2568800765 cites W2084592718 @default.
- W2568800765 cites W2099678246 @default.
- W2568800765 cites W2102661982 @default.
- W2568800765 cites W2104560009 @default.
- W2568800765 cites W2112271096 @default.
- W2568800765 cites W2116334496 @default.
- W2568800765 cites W2117034576 @default.
- W2568800765 cites W2122927222 @default.
- W2568800765 cites W2124227244 @default.
- W2568800765 cites W2124621153 @default.
- W2568800765 cites W2126085217 @default.
- W2568800765 cites W2130241055 @default.
- W2568800765 cites W2130970049 @default.
- W2568800765 cites W2137339815 @default.
- W2568800765 cites W2139685072 @default.
- W2568800765 cites W2142848404 @default.
- W2568800765 cites W2143139219 @default.
- W2568800765 cites W2144411727 @default.
- W2568800765 cites W2148188024 @default.
- W2568800765 cites W2157919853 @default.
- W2568800765 cites W2163808679 @default.
- W2568800765 cites W2166625423 @default.
- W2568800765 cites W2418328444 @default.
- W2568800765 cites W2492022034 @default.
- W2568800765 cites W2494433599 @default.
- W2568800765 cites W2546669345 @default.
- W2568800765 hasPublicationYear "2016" @default.
- W2568800765 type Work @default.
- W2568800765 sameAs 2568800765 @default.
- W2568800765 citedByCount "0" @default.
- W2568800765 crossrefType "dissertation" @default.
- W2568800765 hasAuthorship W2568800765A5080110959 @default.
- W2568800765 hasConcept C119599485 @default.
- W2568800765 hasConcept C127413603 @default.
- W2568800765 hasConcept C190060920 @default.
- W2568800765 hasConcept C192562407 @default.
- W2568800765 hasConcept C202988678 @default.
- W2568800765 hasConcept C21822782 @default.
- W2568800765 hasConcept C24326235 @default.
- W2568800765 hasConcept C2776257435 @default.
- W2568800765 hasConcept C45764600 @default.
- W2568800765 hasConcept C49040817 @default.
- W2568800765 hasConcept C64671776 @default.
- W2568800765 hasConcept C76155785 @default.
- W2568800765 hasConceptScore W2568800765C119599485 @default.
- W2568800765 hasConceptScore W2568800765C127413603 @default.
- W2568800765 hasConceptScore W2568800765C190060920 @default.
- W2568800765 hasConceptScore W2568800765C192562407 @default.
- W2568800765 hasConceptScore W2568800765C202988678 @default.
- W2568800765 hasConceptScore W2568800765C21822782 @default.
- W2568800765 hasConceptScore W2568800765C24326235 @default.
- W2568800765 hasConceptScore W2568800765C2776257435 @default.
- W2568800765 hasConceptScore W2568800765C45764600 @default.
- W2568800765 hasConceptScore W2568800765C49040817 @default.
- W2568800765 hasConceptScore W2568800765C64671776 @default.
- W2568800765 hasConceptScore W2568800765C76155785 @default.
- W2568800765 hasLocation W25688007651 @default.
- W2568800765 hasOpenAccess W2568800765 @default.
- W2568800765 hasPrimaryLocation W25688007651 @default.
- W2568800765 hasRelatedWork W104913391 @default.
- W2568800765 hasRelatedWork W1494808900 @default.
- W2568800765 hasRelatedWork W1535857120 @default.
- W2568800765 hasRelatedWork W2115481862 @default.
- W2568800765 hasRelatedWork W2170351474 @default.
- W2568800765 hasRelatedWork W2489779132 @default.
- W2568800765 hasRelatedWork W2515904192 @default.
- W2568800765 hasRelatedWork W2565260637 @default.
- W2568800765 hasRelatedWork W2573770496 @default.
- W2568800765 hasRelatedWork W2733031627 @default.
- W2568800765 hasRelatedWork W2799517290 @default.
- W2568800765 hasRelatedWork W2847508902 @default.
- W2568800765 hasRelatedWork W2969115819 @default.
- W2568800765 hasRelatedWork W2970155165 @default.
- W2568800765 hasRelatedWork W2982694522 @default.
- W2568800765 hasRelatedWork W2989724082 @default.
- W2568800765 hasRelatedWork W3181729264 @default.
- W2568800765 hasRelatedWork W3210450586 @default.
- W2568800765 hasRelatedWork W627419285 @default.
- W2568800765 hasRelatedWork W2550726429 @default.
- W2568800765 isParatext "false" @default.
- W2568800765 isRetracted "false" @default.
- W2568800765 magId "2568800765" @default.
- W2568800765 workType "dissertation" @default.