Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Wai-Wa Choi"'
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 15, Iss 8, Pp 954-965 (2021)
Abstract In this study, a compact planar power divider (PD) with wideband bandpass response is proposed based on a coupled three‐line filtering prototype. With two back‐to‐back microstrip feeding lines and a coplanar waveguide resonator located
Externí odkaz:
https://doaj.org/article/18aa90e8a67a470f8979bf3e1ea3de65
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 15, Iss 5, Pp 481-494 (2021)
Abstract A microstrip balanced‐to‐balanced filtering power divider (FPD) design with impedance transformation via a coupled three‐line balun structure is proposed. The even/odd mode‐analysis method is used to construct a three‐port balun ba
Externí odkaz:
https://doaj.org/article/c360cef655fd411184e0eab2af22396e
Publikováno v:
IEEE Access, Vol 8, Pp 27038-27046 (2020)
In this paper, a wideband bandpass filter (BPF) with simultaneous bandwidth and notch tuning is proposed, by using a dual cross-shaped resonator (DCSR) with parallel-coupled three-line (PCTL) feeding. It is found that three intrinsic transmission zer
Externí odkaz:
https://doaj.org/article/bf8578e1248e4006b8be975c01c5998d
Publikováno v:
IEEE Access, Vol 7, Pp 101960-101968 (2019)
A differential planar microwave resonator permittivity sensor for material characterization is proposed in this paper. The sensor is based on asymmetric terminated cross-shaped resonator (TCSR) to provide multi-band notch frequency characteristics, a
Externí odkaz:
https://doaj.org/article/0f7f55370b1444fe89a1eed28125f636
Publikováno v:
IEEE Access, Vol 5, Pp 23672-23680 (2017)
A low profile differential-fed dual-polarized microstrip patch antenna (MPA) with bandwidth enhancement is proposed under radiation of the first and second odd-order resonant modes. First, all of even-order modes are fully suppressed by using a diffe
Externí odkaz:
https://doaj.org/article/59836c15f9f9442a857cf2c945645432
Publikováno v:
The Journal of Engineering (2014)
This study presents a novel dual-band antenna design methodology utilising a dual-frequency impedance transformer with defected ground structure (DGS). The proposed dual-frequency DGS impedance transformer generates a second resonant frequency from a
Externí odkaz:
https://doaj.org/article/39f4120ab3cf4612ba0c54f443ec3e77
Autor:
Rui-Sen Chen, Guan-Long Huang, Sai-Wai Wong, Mustafa K. Taher Al-Nuaimi, Kam-Weng Tam, Wai-Wa Choi
Publikováno v:
IEEE Antennas and Wireless Propagation Letters. 22:288-292
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18139ac7e27cb7ba54c7f307a9cfd45e
https://doi.org/10.1109/lawp.2022.3209494
https://doi.org/10.1109/lawp.2022.3209494
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 70:1725-1731
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c6d246b7cf180a4bcaf81b15be6f1d2
https://doi.org/10.1109/tmtt.2021.3134692
https://doi.org/10.1109/tmtt.2021.3134692
Publikováno v:
2022 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b36b7afcbf5fc2d9a29432bdba873f3c
https://doi.org/10.1109/csrswtc56224.2022.10098315
https://doi.org/10.1109/csrswtc56224.2022.10098315
Publikováno v:
2022 Asia-Pacific Microwave Conference (APMC).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a03d2a0511650415ea6bfe35ca8e28b
https://doi.org/10.23919/apmc55665.2022.10000031
https://doi.org/10.23919/apmc55665.2022.10000031