Ka-Band
Analysis Of C-Band, Ku-Band And Ka-Band For Satellite Communication In Malaysia
... Nowadays, the rapid development in communication satellites has brought congestion to the frequency bands below 10 GHz. This fact has forced to the utilization of higher frequency bands such as Ku-band (14/12 ...
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Inductively-Tuned K/Ka Band RF MEMS Capacitive Switches
... Abstract—This paper designs, fabricates, and analyzes an inductively-tuned K/Ka band RF MEMS (Radio frequency micro-electro-mechanical-systems) capacitive switches. The MEMS switch employs a defect ground ...
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A Compact Ka-Band TDD Transceiver System Module with Attractive Temperature Characteristic
... Chip 3 contains one switch and two amplifiers. The switch works at Ka-band. Therefore, the series and parallel structure in chip 1 is not adopted because of the high loss in the millimeter-wave band ...
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Small Size Ka-Band Distributed MEMS Phase Shifters Using Inductors
... Abstract—MEMS phase shifter has been developed using inductors. The design consists of a CPW line capacitively and inductively loaded by the periodic set of inductors and electrostatic force actuated MEMS switches as ...
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Two New Ka-Band Traveling Wave Power Divider/Combiner Designs
... a Ka-band reduced height waveguide. The Ka-band waveguide’s height was reduced to the half of a standard one to decrease the waveguide’s wave impedance value and, thereby, make it more easier ...
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Typical Ka band Satellite Beacon Receiver Design for Propagation Experimentation
... Abstract — This paper presents the design and simulation of a typical Ka band satellite beacon receiver for propagation experimentation. Using satellite beacon signal as a reference signal in satellite wave ...
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A Semi-Empirical Model of Rain Attenuation at Ka-Band in Northern Taiwan
... rain rate) that is subsequently used in estimation of rain attenuation at Ka-band. Regression fit was performed to match the data to widely known distributions: Gamma, Lognormal, and Weibull. It is found ...
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4-Bit Ka Band SiGe BiCMOS Digital Step Attenuator
... Measured results are compared with recently published work and listed in Table 1. The proposed attenuator has 7.5 dB maximum attenuation, and the highest resolution is 0.5 dB. The chip size of the proposed design is the ...
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Ka-Band Radiation Pattern Reconfigurable Antenna Based on Microstrip MEMS Switches
... Abstract—This paper presents the use of micro-electromechanical systems (MEMS) switches to realize the radiation pattern reconfiguration of microstrip antenna, which works in Ka-band. The antenna was ...
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Design, Fabrication and Characterization of a Dielectric Resonator Antenna Reflectarray in Ka-Band
... We have proposed recently an alternative solution using a strip- loaded DRA unit-cell [21, 22]. The main idea is to tune the phase of the reflected field by varying the length of the narrow metal strip printed on the top ...
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Effect of negative resistance in the noise behavior of Ka Band IMPATT diodes.
... A model is developed for a comparative study of noise performance of different semiconductor like Si, GaAs, InP, Wz GaN and 3C SiC based IMPATT diode. It is found from the results that the device noise behavior strongly ...
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DESIGN, FABRICATION AND RF CHARACTERIZATION OF KA-BAND SILICON IMPATT DIODE
... Fig.26 shows a block diagram of a Ka-band measurement test set up used for DC and RF characterization of IMPATT diode. Fig. 27 shows the DC V-I characteristic of the fabricated IMPATT diode. It is seen from ...
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Complex permittivity measurements at Ka-Band using rectangular dielectric waveguide
... The effective index method reduces to Marcatili’s method if (7) is replaced with . Fig. 1 shows the dispersion relation for and modes for RDWG made of Teflon with dimensions equal to the Ka-band (WR-28) ...
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A Dual-Polarized Fabry-Perot Cavity Antenna at Ka Band with Broadband and High Gain
... In this paper, a broadband FPCA with high gain and dual-polarization operation at Ka band is presented. An orthogonal-slots-coupled patch antenna was used as the dual-polarized primary element. The ...
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Ka-band Microwave Frequency Comb Doppler Reflectometer System for the Large Helical Device
... A ka-band multi-channel Doppler reflectometer system was constructed for the Large Helical Device (LHD) using a comb frequency generator as a source. A filter bank system is utilized for precise quadrature ...
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Design of a High Power, High Efficiency Ka-Band Helix Traveling-Wave Tube
... Abstract—The design and analysis of a high power and high efficiency helix traveling-wave tube operating in the Ka-band are presented. First, a double-slotted helix slow-wave structure is proposed and ...
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Design of Carbon Nanotube-Based Broadband Radar Absorber for Ka-Band Frequency Range
... in Ka-band dispersive materials should be ...of Ka-band region, this mechanism allows the achievement of significant attenuation of electromagnetic ...
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Optimal Design of a Ku/Ka-Band Wide-Flare-Angle Corrugated Horn Using the Differential Evolution Algorithm
... Using the relative bandwidth concept, the full Ku/Ka bands represent a nearly 2.9 : 1 bandwidth ratio. It is a significant bandwidth for traditional corrugated horns hard to achieve. Most of the ...
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Highly Integrated Miniature-Sized Single Sideband Subharmonic Ka-Band Up-Converter
... In this paper, a highly integrated miniature-sized Ka-band up- converter is presented to replace a number of MMICs in the transmitter module. This will reduce transmitter design complexity and cost, as well ...
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Ellipse Shaped Micro Strip Patch Antenna for Ku, K and Ka Band Applications
... The simulated reflection coefficient is shown as in the fig - 2: It is found that the simulated values are shown is below -10dB nearly -40dB that the antenna has a good performance (less than -10dB). The resonant ...
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