Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Constant M. A. Niamien"'
Autor:
Constant M. A. Niamien
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 3, Pp 1364-1381 (2022)
This paper investigates the best antenna characteristics to harvest ambient RF waves maximally. The proposed approach analyzes and compares key design aspects, including multi-polarization, multi-port, multi-band, omnidirectional, quasi-isotropic, an
Externí odkaz:
https://doaj.org/article/15d07959c23a492d96a6fb4180bc1747
Unique-Solution Single-Sample Complex Dielectric Characterization Through Linear Phase Approximation
Autor:
Constant M. A. Niamien
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 3, Pp 475-487 (2022)
This paper presents a transmission-only (TO) approach that solves the long-standing problem of transmission phase ambiguity. The approach considers a linear frequency-dependent phase approximation to derive the phase mode value analytically and uniqu
Externí odkaz:
https://doaj.org/article/1d9a4fad82ef476eb95d9c524819d288
Autor:
Constant M. A. Niamien
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 2, Pp 1120-1131 (2021)
This paper presents a 2-D wavefield synthesis approach directly implementable in standard antenna simulation software. The approach uses a field transformation matrix and two array sets to design vertically and horizontally polarized wavefields, impl
Externí odkaz:
https://doaj.org/article/d4f9b0a5f45e492d9203301325371e39
Autor:
Constant M. A. Niamien
Publikováno v:
IEEE Transactions on Antennas and Propagation. 71:2974-2988
Synthesis Approach of Quasi-Isotropic Dipole Arrays Based on the Vector Effective Height Formulation
Autor:
Constant M. A. Niamien
Publikováno v:
IEEE Transactions on Antennas and Propagation. 70:3888-3893
Autor:
Constant M. A. Niamien
Publikováno v:
Microwave and Optical Technology Letters. 64:1235-1244
Publikováno v:
2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting
2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, Jul 2020, Montreal, Canada. pp.1165-1166, ⟨10.1109/IEEECONF35879.2020.9330382⟩
2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, Jul 2020, Montreal, Canada. pp.1165-1166, ⟨10.1109/IEEECONF35879.2020.9330382⟩
This paper investigates the three-dimensional spatial distribution of incident waves within an indoor environment over commonly used wireless bands such as GSM900, GSM1800, IMT2000 and WiFi 2.4 GHz. Unlike previous works, the proposed approach derive
Publikováno v:
2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting.
This paper presents an efficient PSO-algorithm-based approach to design arbitrary focal distance (AFD) reflectarrays. The approach is based on the array factor formulation, which can manage both infinite and finite focal distances, and any kinds of s
Publikováno v:
2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting.
This paper presents a multi-mode approach for designing multi-band cavity-backed slot antennas. The approach is based on the analysis of the fundamental and first higher-order mode of a slot ring structure. In addition, cavity modes can be introduced