Reconfigurable half-mode SIW antenna using uniaxial field programmable microwave substrate structure
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Two-Dimensional Beam Steering Active Lens With Simple Grid Bias Lines at 19 GHz
This paper presents two-dimensional (2D) beam-steering of an active lens with simple grid bias lines at 19 GHz. In general, 2D beamforming in azimuth and elevation planes requires one-to-one unit cell control for a 2D phase distribution on a planar lens. In this work, the 2D phase distribution is achieved with only M vertical and N horizontal bias ...
Electrically Reconfigurable Microwave Metasurfaces With Active Lumped Elements: A Mini Review
Published in Frontiers in Materials
Metasurfaces, a kind of two-dimensional artificially engineered surfaces consist of subwavelength unit cells, have recently attracted tremendous attention, owing to their exotic abilities for tailoring electromagnetic responses. With active lump elements incorporated into the design of metasurfaces, dynamic reconfigurabilities enabled by external s...
Frequency-tunable slot-loop antenna based on KNN ferroelectric interdigitated varactors
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Highly Reconfigurable Dual-Band Coupler With Independently Tunable Frequency and Coupling Coefficient at the Lower Band
To satisfy the stringent requirements of the emerging wireless communication system, the dual-band operation and reconfigurability are both desired for the front end. However, few works can realize them simultaneously. In addition, the flexibility of the implemented reconfigurability is limited. In this article, a reconfigurable dual-band quadratur...
Design of a tunable anti-aliasing filter for multistandard RF subsampling GNSS receivers
A novel reconfigurable dual-bandpass filter with independently controlled center frequencies and fixed bandwidths is presented. It was designed to be integrated as a RF anti-aliasing filter in a reconfigurable multi-bandpass sampling GNSS receiver. The center frequency tuning ranges are 1190-1210 MHz and 1560-1590 MHz in the lower and the upper L-b...
Unit-Cell loaded with PIN diodes for 1-bit Linearly Polarized Reconfigurable Transmitarrays
In this letter, a reconfigurable unit-cell for transmitarray antenna working at X-band is presented. It is designed to provide 1-bit phase quantization using p-i-n diodes. The unit-cell is based on multi-layer frequency selective surfaces with the use of two substrates and a combination of a C-patch and a ring slot loaded by a rectangular gap. It i...
Frequency reconfigurable multiband planar antenna with wide tuning frequency range
In this paper, a frequency reconfigurable triband antenna was designed for multi-standards wireless applications. The reference antenna was optimized to radiate at F1=2.45 GHz. Then, we integrated a lumped capacitor and a varactor diode in two opposite corners of the square patch. Depending on the reverse bias voltage V applied to the varactor diod...
Déphaseur 360° compact large-bande
Cet article présente un déphaseur analogique 0-360 ° à variation continue de phase dans la bande 6,7 GHz - 7,7 GHz. La variation en phase est assurée par des varactors. La topologie de la cellule élémentaire est particulièrement simple et compacte. Les 360 ° sont atteints avec seulement deux cellules avec un minimum de composants pour assurer la po...
A RF tunable Agile Filter: From component to system design
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