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Phase Shifters are the most important component in phased array antenna system. The antenna system that we are using for millimeter wave communication is phased arrays. Phased array antennas are used to improve the gain and directivity and this can be made possible by the use of phase shifters. In this paper we have designed reflective type phase shifters and plotted its performance. The operating...
This work presents a receiving module consisted of a CMOS low-noise amplifier (LNA) followed by a semi-lumped filter and a CPW-fed slot dipole antenna, both circuits are connected using low-cost bonding wires. The structure of the receiver is realized with antenna-in-package (AiP) concept, which reduces the antenna interference through the substrate to the other radio front-end (RF) circuits on the...
This paper presents two fully integrated transmitters with embedded antennas to demonstrate on-wafer wireless testing for the first time. The proposed transmitters are intended to not only replace the I/O pins during manufacturing testing but also to serve as process monitoring circuits. The first RF transmitter, operating at 5.5 GHz, utilizes a current-reuse LC oscillator to minimize complexity and...
Fundamental wave propagation mechanisms for intra-chip communications in a multilayered IC chip structure are studied theoretically and numerically. The well-known Green's function representation in terms of branch cuts (continuous spectrum), residues (discrete spectrum), and direct source-receiver radiation is used to clarify important wave processes for typical intra-chip antenna structures. It...
This paper describes a 500-Mb/s 12-mW pulsed UWB transceiver in 1.8-mum CMOS technology for sub-meter short-range wireless communication. The transceiver employs two functional blocks for reducing power dissipation: one is an on-chip transformer-based DC-RF pulse power converter and another is an asynchronous RF-baseband direct demodulator. The prototype chip with printed dipole antenna can operate...
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