PCB-Based Design of a Beamsteerable Array with High-Gain Antennas and a Rotman Lens at 28 GHz

Mikko Heino*, Clemens Icheln, Jaakko Haarla, Katsuyuki Haneda

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

3 Sitaatiot (Scopus)

Abstrakti

This letter presents a low-cost single-layer printed circuit board (PCB) design of a Rotman lens and an eight-element Yagi-Uda antenna array suitable for radio frequency (RF) beamsteering at 28 GHz. The antenna array realizes 19 dBi gain due to the guiding parasitic elements of each antenna element and a shaped ground plane surrounding the array. The array radiates in a direction parallel to the PCB enabling the possibility for two-dimensional beamsteering by stacking the PCBs. Integrated with an RF switch network, the design has seven switchable beams to the directions-30 °,-20°,-10°, 0°, 10°, 20°, and 30°. The measured realized gain is still as high as 4-10 dBi including losses of the Rotman lens and the RF switches, thanks to the high-gain antenna array design. The array works wideband across 25.5-28.5 GHz where broadside beam gains are better than 8 dBi. This is the first letter in the literature introducing an experimentally verified design of a PCB endfire antenna array at 28 GHz including all necessary components for RF beamsteering, i.e., a Rotman lens and a switch network.

AlkuperäiskieliEnglanti
Artikkeli9169775
Sivut1754-1758
Sivumäärä5
JulkaisuIEEE Antennas and Wireless Propagation Letters
Vuosikerta19
Numero10
DOI - pysyväislinkit
TilaJulkaistu - lokakuuta 2020
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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