الفهرس 
Chapter 1: IntroductionOnly 14 pages are availabe for public view
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Abstract
Lastly, the wireless communication industry has grown explosively and radio frequency integrated circuit (RFIC) research has received a great attention. Ever-increasing demand for monolithic, low-cost, and low-power portable wireless devices has motivated much research on mm-wave (30-300 GHz) electronic wireless transceiver systems to support many applications, such as high data-rate wireless communication and high resolution imaging. Such mm-wave systems are becoming more feasible due to the extreme advancement in silicon-based integrated circuit technologies, which ensures the integration of the antenna, radio frequency circuits and the digital circuits on the same chip allowing the implementation of System-on-Chip (SoC) with low fabrication cost. The unlicensed frequency band at 60 GHz has become a potential candidate for short range communication with high data rates as it is characterized by high attenuation due to atmospheric absorption. Complementary Metal Oxide Semiconductor (CMOS) technology offers the highest level of integration and lower cost in volume production. Although at mm-wavefrequencies the antenna size becomes small enough to fit on the chip, but the antenna performance is greatly degraded due the high conductivity and high relative permittivity of the silicon substrate.
This thesis presents several designs of on-chip antenna and suitable for millimeter-wave radio frequency wireless communications. On-chip microstrip patch antenna with different polarization senses and on-chip dielectric resonator antenna has been designed using the conventional 0.18-μm CMOS process and used for wireless communications at 60 GHz. An efficient on-chip antenna is proposed by combining it with an artificialperiodic structure, which can make the lossy silicon substrate equivalently act as a magnetic conductor. This artificial magnetic conductor (AMC) plane replaces the normal perfect electric conductor (PEC) plane and can reflect the incident wave in phase for a low profile antenna, resulting in enhancement of antenna gain performance. The antenna performance is more improved by employing a high resistive layer beneath the antenna and AMC plane. from the performance of the antenna, we can see great improvement in the gain, radiation efficiency and impedance matching bandwidth, which confirms the function of the AMC structure and high resistive substrates without the use of any external off-chip components. Also an on-chip microstrip patch reflectarray is proposed for obtaining high gain on-chip antenna used for wireless communications between multiple chips. A maximum gain of 17.5 dBi with 2.85% 1-dB gain bandwidth was depicted. Design of microstrip patch reflectarrays for beamscanning in different directions are investigated.