An ohmic RF MEMS switch for reconfigurable microstrip array antennas built on PCB [PDF]
This paper presents the analysis, design and simulation of an ohmic RF MEMS switch specified for reconfigurable microstrip array antennas built on PCB via an integrated monolithic technology.
Charalampidis, N +6 more
core
Simple formulas for microstrip lines
A modification to earlier work is presented which allows for finite strip thickness in the calculation of microstrip impedance and line wavelength. It shows a considerable improvement in accuracy and scope over some earlier work which included strip thickness, but remains simple in form. Expressions are presented which allow calculation of Z and λg for
R.F.G. Ross, M.J. Howes
openaire +1 more source
Investigation of the Resonance Phenomenon in a Microstrip to Grounded Coplanar Waveguide Structure
ABSTRACT In this paper, we investigate the resonance phenomenon in a microstrip (MS) to grounded coplanar waveguide (GCPW) to MS structure. We demonstrate that the resonance arises from the relative phase difference between two excited modes in the GCPW.
Navid Elahi, Jian‐Ming Jin
wiley +1 more source
A miniaturized dual-frequency dual-polarization microstrip patch antenna with high isolation between receiving and transmitting ports (operating at 2.1 GHz for receiving and at 2.5 GHz for transmitting) is presented in this paper.
Chunxia Cheng +3 more
doaj +1 more source
Hierarchical sinuous-antenna phased array for millimeter wavelengths
We present the design, fabrication and measured performance of a hierarchical sinuous-antenna phased array coupled to superconducting transition-edge-sensor (TES) bolometers for millimeter wavelengths.
Cukierman, Ari +4 more
core +1 more source
Characterization of low-noise quasi-optical SIS mixers for the submillimeter band [PDF]
We report on the development of low-noise quasi-optical SIS mixers for the frequency range 400-850 GHz. The mixers utilize twin-slot antennas, two-junction tuning circuits, and Nb-trilayer junctions. Fourier-transform spectrometry has been used to verify
Bin, Mei +5 more
core +1 more source
A Defected Ground Structure without Ground Contact Problem and Application to Branch Line Couplers
A new defected ground structure (DGS) microstrip line that is free from the ground contact problem is described together with its application example. The proposed DGS microstrip line adopts a double-layered substrate.
Jongsik Lim +4 more
doaj +1 more source
Analysis and characterizations of planar transmission structures and components for superconducting and monolithic integrated circuits [PDF]
The analysis and modeling of superconducting planar transmission lines were performed. Theoretically, the highest possible Q values of superconducting microstrip line was calculated and, as a result, it provided the Q value that the experiment can aim ...
Itoh, Tatsuo
core +1 more source
Antenna-coupled TES bolometers used in BICEP2, Keck array, and SPIDER
We have developed antenna-coupled transition-edge sensor (TES) bolometers for a wide range of cosmic microwave background (CMB) polarimetry experiments, including BICEP2, Keck Array, and the balloon borne SPIDER. These detectors have reached maturity and
A. D. Turner +67 more
core +1 more source
Compact Microwave Components with Harmonic Suppression Based on Artificial Transmission Lines
In this paper, compact microwave components, including a Wilkinson power divider and a 3 dB branch-line coupler based on artificial transmission lines (ATLs) with harmonic suppression, are presented.
Wen Huang, Jia Li, Ping Li, Xi Guo
doaj +1 more source

