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2-D Scannable 40-GHz Folded Reflectarray Fed by SIW Slot Antenna in Single-Layered PCB.
- Source :
-
IEEE Transactions on Microwave Theory & Techniques . Jun2018, Vol. 66 Issue 6, p3129-3135. 7p. - Publication Year :
- 2018
-
Abstract
- Folded reflectarray antenna features high gain, low profile, and low sidelobe level, but also faces several challenges in scannability, manufacturing, assembling, and integration with planar circuits, especially at millimeter-wave and terahertz frequencies. To alleviate these issues, this paper presents a slot antenna based on substrate integrated waveguide (SIW) to replace conventional horn. This SIW slot antenna is then inherently integrated with reflectarray elements in the same single-layered printed circuit board (PCB) for the first time. Moreover, this folded reflectarray is able to scan its narrow beams in 2-D, by controlling the polarizing grids. The whole reflectarray is fabricated by the commercial low-cost PCB process and can be highly integrated with planar active circuits. Measured results show that the proposed reflectarray achieves a 2-D scanning zone of 14° $\times$ 14°, a gain of 27.4 dBi, and a cross-polarization level less than −24 dB. The proposed folded reflectarray is promising for several application scenarios including millimeter-wave high-resolution imaging and fifth-generation communications. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189480
- Volume :
- 66
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Microwave Theory & Techniques
- Publication Type :
- Academic Journal
- Accession number :
- 130018023
- Full Text :
- https://doi.org/10.1109/TMTT.2018.2818698