NDLI: High-efficiency millimetre-wave spatial power combining structure

Content Provider	IET Digital Library
Author	Ding, Jinyi Wang, Qingyuan Zhang, Yunbo Wu, Liang Sun, Xiaowei
Abstract	A high-efficiency millimetre-wave spatial power combining structure that is a waveguide power combining network is proposed. High phase and amplitude consistency and isolation between the output ports are the key factors for the high-efficiency power combining structure. The phase and amplitude consistency is guaranteed by the symmetry of this structure. As a sample, an eight-way power splitting and combining network in the Ka-band is designed, fabricated and measured. In a fractional bandwidth of 20% around a centre frequency of 33 GHz, the measured results show that the phase and amplitude differences between the output ports are smaller than ±1.5° and ±0.1 dB, isolation between the output ports is higher than 17 dB, insertion loss is lower than 0.1 dB, and the return loss of the input and output ports is better than 18 dB. The proposed broadband eight-way power combining network can improve the spatial power combining efficiency to a great extent with excellent performance.
Starting Page	397
Ending Page	399
Page Count	3
ISSN	00135194
Volume Number	51
e-ISSN	1350911X
Issue Number	Issue 5, Mar (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/51/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2014.3695
Journal	Electronics Letters
Publisher Date	2015-02-23
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Amplitude Difference Consistency Eight-way Power Splitting Network Frequency 33 GHz High-efficiency Millimetre-wave Spatial Power Combining Structure Ka-band Network Microwave Circuit And Device Millimetre Wave Circuit Phase Difference Consistency Power Combiners Waveguide And Microwave Transmission Line Component Waveguide Power Combining Network
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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