Sökning: "even frequencies"

Visar resultat 11 - 15 av 148 uppsatser innehållade orden even frequencies.

  1. 11. Near Field millimeter Wave Antenna Measurements

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Bharath Manjunatha; [2023]
    Nyckelord :Antenna Pattern; Near field to far field; Planar Scanning; Probe Compensation; Active Antenna; Technology and Engineering;

    Sammanfattning : In the real world, understanding an antenna's radiation pattern is crucial for its proper utilization. Typically, antennas are tested in the far-field region, where the radiation lobes are fully developed and phase errors are less than pi/8. LÄS MER

  3. 12. Blomsterlupin versus tre inhemska ärtväxtarter : Jämförelser av besöksfrekvens och pollineringseffektivitet hos olika grupper av insektspollinatörer

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Tobias Westling; [2023]
    Nyckelord :L. polyphyllus; L. palustris; V. cracca; T. pratense; pollinators; visitation frequency;

    Sammanfattning : Red clover (Trifolium pratense) is currently used as a green fertilizer for agriculture in northern Sweden. However, due to its low resistance against diseases and a minimal benefit to local pollinators, there is a need to find alternative native species that maximize the benefits for pollinators and agriculture. LÄS MER

  4. 13. Blomsterlupin versus tre inhemska ärtväxtarter : Jämförelser av besöksfrekvens och pollineringseffektivitet hos olika grupper av insektspollinatörer

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Tobias Westling; [2023]
    Nyckelord :Lupinus polyphyllus; Lathyrus palustris; Vicia cracca; Trifolium pratense; pollinators; visitation frequency; Lupinus polyphyllus; Lathyrus palustris; Vicia cracca; Trifolium pratense; pollinatörer; besöksfrekvens;

    Sammanfattning : Red clover (Trifolium pratense) is currently used as a green fertilizer for agriculture in northern Sweden. However, due to its low resistance against diseases and a minimal benefit to local pollinators, there is a need to find alternative native species that maximize the benefits for pollinators and agriculture. LÄS MER

  5. 14. TUNABLE ANTENNAS FOR CLOSED-LOOP SYSTEMS

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för datavetenskap

    Författare :ManiChandana Chowki; Shrutha Keerthi Reddy Nagaiahgari; [2023]
    Nyckelord :Closed-loop Systems; Tunable Antennas; Radio Frequency RF ; MCU in closed-loop Systems; Adaptable Tuning; Antenna Impedance Matching Adaptive Antennas.;

    Sammanfattning : Tunable antennas have emerged as a promising technology to address the challenges of achieving optimal performance across a wide range of frequencies. This abstract presents a study focused on designing and implementing an ideal antenna system design within a closed-loop system. Background. LÄS MER

  7. 15. Coexistence of Dual Inductive Wireless Power Transfer Systems

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Eneas Hållsten; [2022]
    Nyckelord :Technology and Engineering;

    Sammanfattning : Wireless power transfer is emerging into everyday life. The idea is to create a more convenient way of charging, or at least powering, devices. LÄS MER