Compact Distributed Phase Shifters at X-Band Using BST
نویسندگان
چکیده
A new type of distributed analog phase shifter is presented that utilizes the coplanar strip transmission line topology. This transmission line has several benefits for phase shifter design, resulting in decreased physical dimensions and potentially lower losses. A prototype was constructed using thin-film barium strontium titante (BST) varactor technology. The design achieved a 49◦/dB figure of merit at 10 GHz. The performance and chip area of the coplanar strip circuit are compared with designs using coplanar waveguide and synthetic lumped element transmission lines.
منابع مشابه
Miniaturized Phase-Shifters for Ka-Band Phased Array Antennas
Realizing robust and stable two-way links between the mobile users and the satellite is an extremely challenging RF/Microwave engineering problem. Low cost and low pro le phased array is considered as the best solution for this problem. High performance low cost and miniaturized variable phase shifter is a key enabling technology for such complex smart phased array antenna system. This thesis a...
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 کاملThin-Film Phase Shifters for Low-Cost Phased Arrays
Drastic cost reduction of phased-arrays will require a shift in design strategy. The emphasis must be on removing expensive active components, not developing more highly integrated components or exotic packaging techniques. The phase shifter circuit—an essential active component—is the primary obstacle in decreasing the cost and number of active components in a phased-array. The problem is mult...
متن کاملA New Circular Polarization Metamaterial Ferrite Phase Shifter
In this paper, a new X band Metamaterial (MTM) based ferrite phase shifter is presented. The phase shifter is excited by circular polarized wave base on combination of TE10 and TE01 modes in a square waveguide. In order to synthesize negative refractive index metamaterial (NIM), negative permeability of ferrite slabs in extraordinary mode is mixed with the negative permitivity of printed period...
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 کامل