Essays about: "drop band"

Showing result 1 - 5 of 11 essays containing the words drop band.

  1. 1. Magnetically tunable microwave resonator/filter

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Zhi Ye; [2022]
    Keywords : Magnetic tuning; Ferrite; Substrate integrated waveguide resonator; Substrate integrated waveguide filter; Magnetisk inställning; Ferrit; Substratintegrerad vågledarresonator; Substratintegrerad vågledarfilter;

    Abstract : The magnetic tunability of ferrites has been studied and applied on many electric components for working in various frequency bands. Filters or resonators loaded by ferrites can thus work for different frequency requirements by tunning external biasing field. However, filters or resonators built by traditional waveguides are large in size. READ MORE

  3. 2. A Tension between the Early and Late Universe: Could Our Underdense Cosmic Neighbourhood Provide an Explanation?

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Sveva Castello; [2021]
    Keywords : Cosmology; Hubble tension; local void;

    Abstract : In recent years, the increasingly precise constraints on the value of the Hubble constant, H0, have highlighted a discrepancy between the results arising from early-time and late-time measurements. A potential solution to this so-called Hubble tension is the hypothesis that we reside in a cosmic void, i.e. READ MORE

  4. 3. Geodesic Lens Antenna for sub-THz Imaging

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Joan Mitjans i Blasco; [2021]
    Keywords : ;

    Abstract : The Millimiter Wave (mmW) frequency band, characterized by a high atmospheric attenuation and wide available bandwidth has become of big interest for high accuracy radar imaging applications. The continuous development of the Monolithic Microwave Integrated Circuit (MMIC) technology yields to the appearance of different commercial-off-the-shelf (COTS) radar transceivers at that frequency band, where the antennas are fully integrated into the chip. READ MORE

  5. 4. Wi-Fi 6E Performance Evaluation in Industrial Scenarios

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Wenqi Rong; [2021]
    Keywords : Wi-Fi 6E; Industrial Wi-Fi; IEEE 802.11ax; Industry 4.0; Wireless local area networks; Industrial application; Wi-Fi 6E; Industrial Wi-Fi; IEEE 802.11ax; Industry 4.0; Trådlösa lokala nätverk; Industriell applikation;

    Abstract : As Industry 4.0 keeps approaching, the quality of data communication in industrial scenarios is increasingly important to support a high degree of automation and intelligence in factories. READ MORE

  6. 5. Development of new criteria for train detection and evaluation in critical conditions

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Sofiane Kerbal; [2019]
    Keywords : railway signaling; train detection; track circuit; shunt; frequency modulation; frequency-shift keying modulation; third-order harmonic; short-time Fourier transform; power spectral density estimation; cross-correlation;

    Abstract : Railway signaling is of paramount importance to ensure traffic management andsafety on the rail network. The main lines are divided into sections called ‘blocks’,which are governed by a fixed signal installation. To prevent trains from colliding,each block allows one train at once. READ MORE