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In this paper a design of UWB aperture-coupled stacked patch (ASP) antenna to be used as an array element in a short range imaging radar is presented. The antenna operates in the frequency band from 10 GHz to 18 GHz. Antenna optimization is done using two different numerical techniques in order to cross-verify the simulated results. Experimental results agree very well with the simulated results from...
An improved antenna design for stacked patch antenna to be integrated with a RF chip is proposed. The antenna is to be manufactured in LTCC technology which simplifies integration with a RF chip. The antenna has an operational bandwidth from 58.8 GHz to 68.4 GHz (15.1%) and a gain of 3-3.5 dBi.
In this paper a millimeter-wave (MMW) Gilbert-cell up-conversion mixer using standard 130-nm CMOS technology is presented. This mixer has a power conversion gain of better than 2 dB and has the highest reported OP1dB of -5.6 dBm when driven with a LO power of 0 dBm. The LO to RF isolation is better than 37 dB for LO from 57 to 65 GHz. To the authors' knowledge, this is the first CMOS Gilbert-cell...
A novel antenna design for an M-band UWB antenna to be realized in LTCC technology is presented. The antenna concept is based on slot-fed stacked patches, while antenna feeding is done differentially via two pins. LTCC technology provides extra constrains on the antenna design. Based on simulation the proposed antenna has an operational bandwidth between 55.4 GHz to 68.2 GHz with a gain of around...
This paper presents a discrete time noncolocated control of flexible mechanical systems. The time delay method in continuous time control is extended to discrete time control. A stability criterion that relates the closed-loop stability to the sampling frequency, time delay, and sensor and actuator locations, is derived. Based on the criterion, particular noncolocated controllers are designed for...
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