scholarly journals Design and Fabrication of a High-Power Pulsed TWTA for Millimeter-Wave(Ka-Band) Multi-Mode Seeker

2019 ◽  
Vol 30 (4) ◽  
pp. 307-313
Author(s):  
Sung-Chan Song ◽  
Sun-Ki Kim ◽  
Sung-Wook Lee ◽  
Seong-Ki Min
Keyword(s):  
Millimeter Wave ◽  
High Power ◽  
Ka Band ◽  
Multi Mode

Study on structural characteristics of Ka-band high power millimeter wave radial transit time oscillator

2019 ◽  
Vol 26 (1) ◽  
pp. 013101 ◽  
Author(s):  
Haitao Wang ◽  
Jun Zhang ◽  
Fangchao Dang ◽  
Baoliang Qian
Keyword(s):  
Millimeter Wave ◽  
Transit Time ◽  
High Power ◽  
Structural Characteristics ◽  
Ka Band

THE FIRST 70NM 6-INCH GaAs PHEMT MMIC PROCESS

2009 ◽  
Vol 19 (01) ◽  
pp. 101-106
Author(s):  
H. KARIMY ◽  
L. GUNTER ◽  
D. DUGAS ◽  
P.C. CHAO ◽  
W. KONG ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
High Power ◽  
Device Fabrication ◽  
High Yield ◽  
Excellent Performance ◽  
Ka Band ◽  
Wave Technology

BAE Systems has developed a high power, high yield 70nm 6" 2-mil PHEMT MMIC process for frequencies up to 100GHz. Utilizing T -gate technology and 2-mil substrates, we have created a millimeter wave technology that produces excellent performance from Ka -band through W -bands. The device DC and RF characteristics have excellent uniformity across the wafer. In this paper, we report the 70nm device fabrication on 6-inch wafers and compare the DC and RF characteristics with its mature 0.1µm counterpart.

Experimental investigation of a Ka band high power millimeter wave generator operated at low guiding magnetic field

2011 ◽  
Vol 18 (5) ◽  
pp. 053101 ◽  
Author(s):  
Jun Zhu ◽  
Ting Shu ◽  
Jun Zhang ◽  
Guolin Li ◽  
Zehai Zhang ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Experimental Investigation ◽  
Millimeter Wave ◽  
High Power ◽  
Ka Band ◽  
Wave Generator

Advanced Ceramics Sintering Using High-Power Millimeter-Wave Radiation

1996 ◽  
Vol 430 ◽  
Author(s):  
Y. Setsuhara ◽  
M. Kamai ◽  
S. Kinoshita ◽  
N. Abe ◽  
S. Miyake ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
Millimeter Wave ◽  
High Power ◽  
Antenna System ◽  
Wave Radiation ◽  
Optical Antenna ◽  
60 Ghz ◽  
Densification Temperature ◽  
Multi Mode ◽  
Focused Beam

AbstractThe results of ceramics sintering experiments using high-power millimeter-wave radiation are reported. Sintering of silicon nitride with 5%Al2O3 and 5%Y2O3 was performed in a multi-mode applicator using a 10-kW 28-GHz gyrotron in CW operation. It was found that the silicon nitride samples sintered with 28 GHz radiation at 1650'C for 30 min reached to as high as theoretical density (TD), while the conventionally sintered samples at 1700°C for 60 min resulted in the density as low as 90% TD. Focusing experiments of millimeter-wave radiation from the high-power pulsed 60-GHz gyrotron have been performed using a quasi-optical antenna system (two-dimensional ellipso-parabolic focusing antenna system) to demonstrate the feasibility of the power density of as high as 100 kW/cm2. Typical heating characteristics using the focused beam were made clear for this system. It was found that the densification of yttria-stabilized zirconia (ZrO2-8mol%Y2O3) samples to as high as 97% TD was obtained from the sintering with focused 60 GHz beam in pulse operation with a 10-ms pulse duration at a 0.5Hz repetition. The densification temperature for the zirconia could be lowered by 200°C than that expected conventionally.

Ku/Ka-band Compact Orthomode Junction with Low Pass Filters for High Power Applications

2015 ◽  
Vol E98.C (2) ◽  
pp. 156-161
Author(s):  
Hidenori YUKAWA ◽  
Koji YOSHIDA ◽  
Tomohiro MIZUNO ◽  
Tetsu OWADA ◽  
Moriyasu MIYAZAKI
Keyword(s):  
High Power ◽  
Ka Band ◽  
Low Pass ◽  
Low Pass Filters
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