Design of a Waveguide 8×8 Butler Matrix for Ka-Band Broadband Multi-Port Amplifiers(MPAs)

Autor:	Hongyeal Lee, Manseok Uhm, In-Bok Yom
Rok vydání:	2012
Předmět:	Engineering business.industry Amplifier Broadband Bandwidth (signal processing) Electrical engineering Return loss Power dividers and directional couplers Insertion loss Ka band Wideband business
Zdroj:	The Journal of Korean Institute of Electromagnetic Engineering and Science. 23:449-456
ISSN:	1226-3133
Popis:	Herein, we design a wideband waveguide Butler matrix in order to use in a multi-port amplifiers(MPAs) at Ka-band. To achieve the broadband characteristic, we design a binomial 6-slot 3 dB directional coupler which is used to configure the Butler matrix. The measured results of the fabricated Butler matrix have low insertion loss of less than 0.3 dB, good return loss of over 26 dB and high isolation of over 35 dB within the design bandwidth of 3 GHz.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::599f1fc51c1d62a70f2129a78abc4f66 https://doi.org/10.5515/kjkiees.2012.23.4.449 Zobrazit plný text záznamu