Performance characterization of wideband, wide-angle scan arrays of cavity-backed U-slot microstrip patch antennas

✍ Scribed by Juan Córcoles; Miguel A. González; Jesús Rubio; Juan Zapata

• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 345 KB
• Volume: 19
• Category: Article
• ISSN: 1096-4290
• DOI: 10.1002/mmce.20361

✦ Synopsis

This work looks at the use of wideband cavity-backed U-slot microstrip antennas in finite phased arrays. This configuration retains the single-patch and single-layer characteristics of conventional microstrip antenna arrays and provides a good impedance matching over wider scan angles when electrically thick substrates are used to improve the frequency bandwidth. The characteristics of finite phased arrays of U-slot rectangular microstrip patches enclosed in cylindrical cavities are analyzed from a validated hybrid methodology based on the finite element method, the modal analysis, and the properties of spherical waves. The results are compared with those obtained using an infinite array model. V