Sökning: "mikrostrip"

Hittade 5 uppsatser innehållade ordet mikrostrip.

  1. 1. Design of an Array of Patch-elements With a Band-pass Frequency Selective Surface Hybrid Radome : Analysis and characterisation of a frequency selective surface and a phased array antenna

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Curt-Herman Normark Frisk; [2022]
    Nyckelord :Frequency Selective Surface; Microstrip Patch Element; Circular Polarisation; Phased Array Antenna; Single Feed; Frekvensselektiv Yta; Mikrostrip Patchelement; Cirkulär Polarisering; Fasstyrd Gruppantenn; Single-matad;

    Sammanfattning : A circular polarised phased array antenna and a frequency selective hybrid radome are designed and evaluated. The antenna system is well suited as a part of a communication link between platforms with a 600 MHz bandwidth and a centre frequency of 5 GHz. LÄS MER

  3. 2. Dual-polarized fully-metallic Vivaldi antenna array in a triangular lattice

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Omar Orgeira Alvarez; [2022]
    Nyckelord :Base station; Mobile communications; Phased arrays; Vivaldi antenna; Stripline; Basstation; Mobilkommunikation; Phased arrays; Vivaldi-antenn; Stripline;

    Sammanfattning : New mobile communication generations need electromagnetic sensors capable of steering their high-directive beams towards the users. Conventional base stations use square lattice phased arrays to accomplish this task. These arrays are composed of a large number of radiating elements to achieve the required high directivity and scanning capabilities. LÄS MER

  4. 3. Study of the effects of applying higher symmetries to printed filters

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Jose Luis Medran del Rio; [2018]
    Nyckelord :Glide symmetry; printed filter; microstrip; higher symmetries; Glidsymmetri; tryckta filter; mikrostrip; högre symmetrier;

    Sammanfattning : In recent years, a new field of study has arisen around theapplication of the so-called higher symmetries to structures that werealready thought to be completely studied and with no room forimprovement in terms of benefits.There are two types of higher symmetries, named glide and twistsymmetries. LÄS MER

  5. 4. Spegeldämpande filter för L-band

    Kandidat-uppsats, Institutionen för systemteknik

    Författare :Tommy Ivarsson; [2007]
    Nyckelord :mikrostrip filter L-band combline commensurate;

    Sammanfattning : I detta examensarbete presenteras två olika konstruktionslösningar för ett spegeldämpande filter till en heterodynmottagare för L-bandet. Båda filtren är uppbyggda av distribuerade element i mikrostripsteknik. LÄS MER

  7. 5. Analys och förbättringsförslag för riktkopplardesign

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

    Författare :Alexander Regamey; [2005]
    Nyckelord :directional coupler; design of a directional coupler; stripline; microstrip; UMTS; riktkopplare; riktkopplardesign; stripline; mikrostrip; UMTS;

    Sammanfattning : Ericsson develops a new stripline directional coupler. Its design is described in appendix B and differs from the directional couplers Ericsson uses in current products. The new directional coupler will be used for transmission power measurement in future UMTS 3G base stations. The most important parts of directional coupler theory are presented. LÄS MER