Broadband Microwave Negative Group Delay Transmission Line Phase Shifters
نویسنده
چکیده
منابع مشابه
Application of negative group delay active circuits to the design of broadband and constant phase shifters
The new phase-shifter configuration described in this report uses a negative group delay (NGD) active circuit. In this topology, a classical transmission line is set in cascade with an NGD circuit whose phase slopes are alike, but opposite, to get a constant and broadband phase shift. The proposed approach was validated through the design and measurement of a phase shifter, which exhibited a co...
متن کاملDistributed MEMS True-Time Delay Phase Shifters and Wide-Band Switches - Microwave Theory and Techniques, IEEE Transactions on
Wide-band switches and true-time delay (TTD) phase shifters have been developed using distributed microelectromechanical system (MEMS) transmission lines for applications in phased-array and communication systems. The design consists of a coplanar waveguide (CPW) transmission line (W = G = 100 m) fabricated on a 500m quartz substrate with fixed–fixed beam MEMS bridge capacitors placed periodica...
متن کاملتحلیل و طراحی تغییر دهنده فاز N - بیتی MEMS توزیع شده در باند Ka
Modern microwave and millimeter wave phased array antennas are attractive because of their ability to steer wave beams in space without physically moving the antenna element. A typical phased array antenna may have several thousand elements fed by a phase shifter for every antenna, which can steer the resulting array beam to different directions. Their low loss, low cost and lightweight phase s...
متن کاملMicrowave properties of Ba0.5Sr0.5TiO3 thin film coplanar phase shifters
Coplanar waveguide transmission lines have been used to show that the temperature dependent properties of Ba 0.5 Sr 0.5 TiO 3 thin films used for microwave phase shifters in the frequency range 45 MHz– 50 GHz are correlated strongly with the microstructure of the films. The highest tunability and figure of merit of the phase shifters were obtained for films with the narrowest ferroelectric-para...
متن کاملA Low-cost Phased Array Antenna Inte- Grated with Phase Shifters Cofabricated on the Laminate
This paper presents the design, development and experimental characterization of a monolithic phased array antenna integrated on a microwave laminate. A four-element linear antenna array is realized by cofabricating the corporate feed network, microstrip-CPW transitions, DC blocks, and mesoscale phase shifters on the same substrate. The phase shifters used here are electrostatically actuated an...
متن کامل