Results 21 to 30 of about 611 (173)
Recent Advances in Beam Steering/Scanning Leaky-Wave Antennas [PDF]
, 2023 Leaky-wave antennas (LWAs) is a promising antenna technology for future wireless systems. In this paper, we present a number of our recent innovative designs to overcome challenging issues existed in LWAs.
Li, Z, Chen, S-L
core +1 more source
Plasmonic leaky wave antenna based on modulated radius of cylindrical graphene waveguide
AIP Advances, 2021 In this paper, the concept, analysis, and synthesis of a novel plasmonic leaky wave antenna (LWA) based on the modulated radius of a cylindrical graphene waveguide (CGW) at the terahertz band are presented. Devices based on the planar graphene waveguide (
Hadi Soleimani, Homayoon Oraizi
doaj +1 more source
IEEE Access, 2022 A beam-changeable concentric annular Leaky-Wave Antenna (LWA) array is proposed, which contains two annular LWAs with constant-interval slots. By changing the excitations of the two LWAs, the radiation beam can be changed to different shapes and in ...
Yuchen Ma +4 more
doaj +1 more source
Improved Design of Uniform SIW Leaky Wave Antenna With Suppression of Unwanted Mode
IEEE Access, 2021 In this paper, periodic perturbations are employed on the broad wall of a substrate integrated waveguide (SIW) long slot leaky-wave antenna (LWA) to eliminate the excited unwanted mode.
Amin Mahmoodi Malekshah +2 more
doaj +1 more source
IEEE Access, 2021 An approach for improving the gain of the leaky-wave antenna (LWA) is presented in this paper. Embedding cavities in the structure leads to gain improvement.
Nima Javanbakht +3 more
doaj +1 more source
Highly Efficient Dual-Beam Frequency Scanning Based on SSPPs With Parasitic Patch Array
Frontiers in Physics, 2022 A leaky-wave antenna (LWA) realizes radiation of travelling wave along guiding structures. Periodic modulation is an effective approach to turn non-radiating modes into radiating modes.
Bai Cao Pan +6 more
doaj +1 more source
Advanced Theory and Simulations, Volume 6, Issue 12, December 2023., 2023 Approach based on the relationship between the zeros and poles of a discrete linear time‐invariant (LTI) low‐pass filter designed using Butterworth and Chebyshev type I polynomials and the parameters of a leaky‐wave antenna (LWA) array. The method is able to produce a pass‐band without ripple, joint control on the pass‐band and rejection‐band, as well ...
Rafael Verdú‐Monedero +2 more
wiley +1 more source
Transversely Slotted Leaky-Wave Antenna with Purer Linear Polarization [PDF]
, 2022 The traditional transversely slotted leaky-wave antenna (LWA) is a traveling-wave antenna, producing linear-polarized wave and scanned beams in radiation.
Chan, KY ; https://orcid.org/ +2 more
core +1 more source
Advanced Intelligent Systems, Volume 5, Issue 10, October 2023., 2023 Devising low‐cost security measures is crucial for realizing the vision of emerging wireless networks. Physical layer security harnesses the physical layer characteristic of wireless communications to address security concerns as part of data transmission.
Alireza Nooraiepour +4 more
wiley +1 more source
Electronics Letters, Volume 59, Issue 20, October 2023., 2023 A wideband leaky‐wave antenna on a new substrate‐integrated waveguide with twisted integrated–digitated capacitor‐based corrugations. Abstract This letter presents a new thin substrate‐integrated waveguide with twisted integrated–digitated capacitor‐based corrugations that offers a transmission loss < 0.55 dB.
Utkarsh Pandey +4 more
wiley +1 more source