IEEE Transactions on Microwave Theory and Techniques
Papers 19497
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#1Ching-Yun Chu (NCTU: National Chiao Tung University)H-Index: 1
#2Yuan-Pu Chen (NCTU: National Chiao Tung University)H-Index: 1
Last.Yu-Jiu Wang (NCTU: National Chiao Tung University)H-Index: 3
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In this article, a scalable hybrid phased-array system is presented through synchronization, analog complex weighting, and digital beamforming of numerous fully integrated Ka-band four-receiver (RX)/four-transmitter (TX) phased-array transceiver integrated circuits (ICs). A 1.09-GHz clock synchronizes the local oscillator (LO) and a 50-MHz clock synchronizes analog-to-digital (A/D)/digital-to-analog (D/A) converters for all array elements. Phase shifting is first accomplished in the analog domai...
#1Jianguo Ma (GDUT: Guangdong University of Technology)H-Index: 14
5G is coming and it will change our lives. Now, 6G is under discussion too. The multiple-in–multiple-out (MIMO) technique is a critical technique for 5G and beyond. Additional element transceivers and antennas are usually required for supporting the beamforming configuration and MIMO communication. If one just simply puts many transceivers in parallel to drive the antennas, the system size will increase tremendously and the manufacturing cost will also increase significantly. How to reduce the o...
Active retrodirective antenna arrays find a variety of use in applications involving wireless communication and sensing systems. This article presents a novel active version of the phase-conjugating Rotman lens with negative conductance amplifiers for applications requiring high retrodirective gain or modulation capability. Implementation challenges and limitations of extending the existing passive retrodirective Rotman lens into this enhanced active mode are described. In order to retain system...
#1Junwen Jiang (UW: University of Waterloo)H-Index: 1
#2Raafat R. Mansour (UW: University of Waterloo)H-Index: 37
This article presents the design and implementation of a novel structure for wideband dielectric substrate (DS)-based filters. The cavity of the filter is separated into two thin DSs, a metal frame for holding the DSs, and two metal covers. The filter is compact in size and ideal for integration with antennas because of its relatively thin profile. Since it uses separated DSs attached to the two sides of the metal frame, the input-output probe can be placed in the middle of the cavity, leading t...
#1Jasper Drisko (NIST: National Institute of Standards and Technology)H-Index: 2
#2Richard A. Chamberlin (NIST: National Institute of Standards and Technology)H-Index: 4
Last.Christian J. Long (NIST: National Institute of Standards and Technology)H-Index: 12
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The series resistor (SR) is a common on-wafer device typically used in the series-resistor (SR) calibration and for estimating the capacitance per unit length of coplanar waveguide (CPW) transmission lines. While much work has been done using SRs, this article addresses the design of the resistor itself, considering both its dc resistance value and geometry, and evaluates which resistor is the best resistor. We fabricated 48 different SRs with dc resistances ranging from approximately 1 Ω to ove...
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