A 70-GHz Bandwidth and 9-dB Gain Travelling Wave Amplifier Using 0.15-?m Gate InGaP/InGaAs HEMTs with Coplanar Transmission Line Technology

Author(s):  
Masaru Sato ◽  
Tatsuya Hirose ◽  
Yuu Watanabe
2020 ◽  
Vol 14 (12) ◽  
pp. 2263-2270 ◽  
Author(s):  
Chenhao Zhang ◽  
Guobing Song ◽  
Liming Yang ◽  
Xinzhou Dong

2019 ◽  
Vol 6 ◽  
pp. 23
Author(s):  
Tsutomu Nagayama ◽  
Atsushi Sanada

We demonstrate broadband transmission-line illusions based on transformation electromagnetics at microwave frequencies by using the distributed full-tensor anisotropic medium. Due to an intrinsic nature of the non-resonant unit cell of the medium, the illusions operate from DC to an upper limit frequency where the homogeneous medium approximation holds. Two-dimensional groove and bump illusion media mimicking scattered waves by an original groove and a bump are designed. Their broadband and incident angle independent operations are confirmed by circuit simulations. The groove illusion medium is implemented on a dielectric substrate with microstrip-line technology, and it is confirmed experimentally by near-field measurements that the illusion medium well mimics scattered waves by the original groove in the broadband frequency range from 2.60 GHz to 4.65 GHz.


2020 ◽  
Vol 1648 ◽  
pp. 042083
Author(s):  
Wuneng Liu ◽  
Lilong Liu ◽  
Gengli He ◽  
Peng Li

2020 ◽  
Vol 14 (9) ◽  
pp. 1705-1713
Author(s):  
Dong Wang ◽  
Dachuan Yu ◽  
Haishan Yang ◽  
Mengqian Hou ◽  
Yifei Guo

2018 ◽  
Vol 12 (4) ◽  
pp. 1870022
Author(s):  
Yinxing Ding ◽  
Xiaokang Song ◽  
Ping Jiang ◽  
Rongzhen Jiao ◽  
Lulu Wang ◽  
...  

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