Spelling suggestions: "subject:"chip antennas"" "subject:"hip antennas""
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Overcome the Limitations of Performance Parameters of On-Chip Antennas Based on Metasurface and Coupled Feeding Approaches for Applications in System-on-Chip for THz Integrated-CircuitsAlibakhshikenari, M., Virdee, B.S., See, C.H., Abd-Alhameed, Raed, Falcone, F., Limiti, E. 10 December 2019 (has links)
Yes / This paper proposes a new solution to improve the performance parameters of on-chip antenna designs on standard CMOS silicon (Si.) technology. The proposed method is based on applying the metasurface technique and exciting the radiating elements through coupled feed mechanism. The on-chip antenna is constructed from three layers comprising Si.-GND-Si. layers, so that the ground (GND) plane is sandwiched between two Si. layers. The silicon and ground-plane layers have thicknesses of 20μm and 5μm, respectively. The 3×3 array consisting of the asterisk-shaped radiating elements has implemented on the top silicon layer by applying the metasurface approach. Three slot lines in the ground-plane are modelled and located directly under the radiating elements. The radiating elements are excited through the slot-lines using an open-circuited microstrip-line constructed on the bottom silicon layer. The proposed method to excite the structure is based on the coupled feeding mechanism. In addition, by the proposed feeding method the on-chip antenna configuration suppresses the substrate losses and surface-waves. The antenna exhibits a large impedance bandwidth of 60GHz from 0.5THz to 0.56THz with an average radiation gain and efficiency of 4.58dBi and 25.37%, respectively. The proposed structure has compact dimensions of 200×200×45μm3. The results shows that, the proposed technique is therefore suitable for on-chip antennas for applications in system-on-chip for terahertz (THz) integrated circuits. / Innovation programme under grant agreement H2020-MSCA-ITN-2016 SECRET-722424; UK Engineering and Physical Sciences Research Council (EPSRC) under grant EP/E0/22936/1.
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Compact WiMAX Antennas for the Mobile PhoneLai, Peng-yu 09 June 2008 (has links)
Novel compact antenna designs for WiMAX (Worldwide interoperability for microwave access) operation in the mobile phone are presented in this thesis. In the first design, the antenna is integrated at one corner of system circuit board of the mobile phone and consists of two radiating portions; the monopole slot is formed by integrating the two portions. In the second design, two different antenna structures are used to achieve all WiMAX operating bands. Finally, in the third design, the chip antenna comprises a resonant monopole patch, a resonant shorter slot and a matching longer slot. The latter two slots are embedded within the monopole patch to achieve a compact integration. Detailed antenna designs and experimental results are presented and discussed.
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Millimeter-wave and sub-terahertz on-chip antennas, arrays, propagation, and radiation pattern measurementsGutierrez, Felix, active 2013 10 February 2014 (has links)
This dissertation focuses on the development of next generation wireless
communications at millimeter-wave and sub-terahertz frequencies. As wireless
providers experience a bandwidth shortage and cellular subscribers demand
faster data rates and more reliable service, a push towards unused carriers fre-
quencies such as 28 GHz, 60 GHz, and 180 GHz will alleviate network conges-
tion while simultaneously providing massive bandwidths to consumers. This
dissertation summarizes research in understanding millimeter-wave wireless
propagation, the design and fabrication of millimeter-wave and sub-terahertz
on-chip antenna arrays on an integrated circuit semiconductor process, and
the accurate measurement of on-chip antenna radiation patterns in a wafer
probe station environment. / text
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