Results 31 to 40 of about 29,052 (301)

Compact 28 GHz Folded Butler Matrix Using Low-Temperature Co-fired Ceramics [PDF]

Journal of Electromagnetic Engineering and Science, 2022
This paper introduces a miniaturized Butler matrix design method using a folded structure. The Butler matrix was fabricated in multi-layers using low-temperature co-fired ceramics (LTCC) and designed to operate at 28 GHz.
Seunggoo Nam, Sehwan Choi, Jongin Ryu, Jaeyoung Lee   +3 more
doaj   +1 more source

III-V-on-silicon photonic devices for optical communication and sensing [PDF]

, 2015
In the paper, we review our work on heterogeneous III-V-on-silicon photonic components and circuits for applications in optical communication and sensing.
Abbasi, Amin, Baets, Roel, Bauwelinck, Johan, Cardile, Paolo, Dave, Utsav Deepak, De Groote, Andreas, De Koninck, Yannick, Dhoore, Sören, Fu, Xin, Gassenq, Alban, Hattasan, Nannicha, Huang, Qiangsheng, Keyvaninia, Shahram, Kumari, Sulakshna, Kuyken, Bart, Li, Lianyan, Mechet, Pauline, Morthier, Geert, Muneeb, Muhammad, Roelkens, Günther, Sanchez, Dorian, Shao, Haifeng, Spuesens, Thijs, Subramanian, Ananth, Tassaert, Martijn, UVIN, SARAH, van Campenhout, J., Van Gasse, Kasper, Van Thourhout, Dries, Verbist, Jochem, Wang, Ruijun, Wang, Zhechao, Yin, Xin, Zhang, Jing   +33 more
core   +4 more sources

Conceptual design of a sapphire loaded coupler for superconducting radio-frequency 1.3 GHz cavities

Physical Review Accelerators and Beams, 2016
This paper explores a hybrid mode rf structure that served as a superconducting radio-frequency coupler. This application achieves a reflection S_{(1,1)} varying from 0 to −30  db and delivers cw power at 7 KW.
Chen Xu, Sami Tantawi
doaj   +1 more source

Ripple Suppression in Broadband Microwave Photonic Phase Shifter Frequency Response

Applied Sciences, 2018
This paper presents a detailed investigation on the cause of ripples in the frequency response of a microwave photonic phase shifter implemented using a 90° hybrid coupler.
Weicheng Xia, Ruiqi Zheng, Bijuan Chen, Erwin H. W. Chan, Xudong Wang, Xinhuan Feng, Bai-Ou Guan   +6 more
doaj   +1 more source

New small 90° hybrid coupler

Electronics Letters, 1994
The two classical 90° couplers (Lange coupler and branch-line hybrid) are not appropriate for frequencies around 1–5 GHz. The small 90° coupler proposed by the authors is the implementation of the Wheatstone bridge in uniplanar transmission lines. It is dedicated to narrowband applications. The coupler is demonstrated at a centre frequency of 4 GHz.
M.-H. Murgulescu, P. Legaud, E. Penard, I. Zaquine   +3 more
openaire   +1 more source

Perancangan dan Implementasi Duplexer Mikrostrip untuk Frekuensi LTE pada band ke-7

Jurnal Elkomika, 2013
ABSTRAK Kebutuhan akan komunikasi bergerak semakin mengalami peningkatan dalam dunia teknologi yang ada saat ini, maka hadirlah teknologi terbaru yaitu Long Term Evolution (LTE).
ENCENG SULAEMAN, ARSYAD RAMADHAN DARLIS, HARIANTI ASRI DEWI   +2 more
doaj   +1 more source

The reconfigurable Josephson circulator/directional amplifier [PDF]

, 2015
Circulators and directional amplifiers are crucial non-reciprocal signal routing and processing components involved in microwave readout chains for a variety of applications.
Devoret, M. H., Frunzio, L., Hatridge, M., Narla, A., Schoelkopf, R. J., Shankar, S., Sliwa, K. M.   +6 more
core   +3 more sources

Surface roughness impact on the performance of the 3D metal printed waveguide coupler at millimeterwave band

Engineering Science and Technology, an International Journal, 2022
This paper presents the impact of surface roughness on the performance of a three –dimensional (3D) metal printed waveguide coupler designed at 28 GHz.
Muataz Almeshehe, Noor Murad, Mohamad Rahim, Osman Ayop, Noor Samsuri, Mohamad Abd. Aziz, Mohamed Osman   +6 more
doaj   +1 more source

Design and Testing of Superconducting Microwave Passive Components for Quantum Information Processing

, 2010
We report on the design, fabrication and testing of two superconducting passive microwave components, a quadrature hybrid and a 20 dB directional coupler.
Hilton, G. C., Irwin, K. D., Ku, H. S., Lehnert, K. W., Mallet, F., Russek, S. E., Vale, L. R.   +6 more
core   +1 more source

Broadband uniplanar hybrid ring coupler

Electronics Letters, 1993
A new uniplanar hybrid ring coupler using coplanar waveguide (CPW) and slotline is presented. This new coupler provides substantially improved amplitude and phase characteristics over a broad bandwidth compared with the conventional microstrip hybrid ring couplers.
C.-H. Ho, L. Fan, K. Chang
openaire   +1 more source