Title :
Broadband 4 × 4 microstrip antenna array utilizing slot-coupled power dividers
Author :
Slomian, Izabela ; Sorocki, Jakub ; Kaminski, Piotr ; Rydosz, Artur ; Wincza, Krzysztof ; Gruszczynski, Slawomir
Author_Institution :
AGH Univ. of Sci. & Technol., Cracow, Poland
Abstract :
A 4 × 4 microstrip antenna array designated for 24 GHz FMCW radar systems featuring 2 GHz bandwidth is presented. The antenna array uses a stacked laminate structure composed of three dielectric layers. In the proposed antenna the power distribution is provided by series feeding across linear antenna subarrays with the use of inclined slot-coupled power dividers coupled to the straight transmission lines which feed these linear antenna subarrays. The broad impedance bandwidth has been ensured by application of parasitic elements located on the top metallization layer. The design and measurement results of the manufactured antenna array are shown.
Keywords :
CW radar; FM radar; broadband antennas; dielectric materials; linear antenna arrays; microstrip antenna arrays; power dividers; FMCW radar system; bandwidth 2 GHz; broadband 4 × 4 microstrip antenna array; dielectric layer; frequency 24 GHz; impedance bandwidth; linear antenna subarrays; metallization layer; parasitic element; power distribution; series feeding; slot-coupled power divider; stacked laminate structure; transmission lines; Antennas; Electromagnetics; broadband antennas; microstrip antenna arrays; multi-layer antennas; slot-coupled power dividers;
Conference_Titel :
Microwave & Optoelectronics Conference (IMOC), 2013 SBMO/IEEE MTT-S International
Conference_Location :
Rio de Janeiro
DOI :
10.1109/IMOC.2013.6646421
