A Novel Multilayer Aperture-Coupled Cavity Resonator for Millimeter-Wave CMOS RFICs

Miao, Meng; Nguyen, Cam

doi:10.1109/tmtt.2007.892817

Cited by 32 publications

(10 citation statements)

References 11 publications

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“…The configuration of the proposed antenna is illustrated in Figure 1, in which the radiating aperture is the middle section with the width and height of and , while the two coupling apertures refer to those on top and underneath the radiating aperture, with the width, height, and length of , 1 , and 2 . The width ( = 97.60 mm) and height ( = 46.80 mm) of the rectangular waveguide (the middle section) are fixed, where the relationship between its width ( ) and length ( ) is that of = 2 , to achieve the center frequency of 2.45 GHz in the dominant mode (TE 10 ) [24][25][26][27][28].…”

Section: The Antenna Designmentioning

confidence: 99%

Design of Symmetrical Beam Triple-Aperture Waveguide Antenna for Primary Feed of Reflector

Nuangwongsa

Phongcharoenpanich

2016

International Journal of Antennas and Propagation

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This research presents a triple-aperture waveguide antenna as the primary feed of parabolic reflectors. The proposed antenna is able to rectify the asymmetry and also achieve a symmetrical unidirectional beam through the application of two parasitic coupling apertures. The design of the antenna is that of a rectangular waveguide (radiating aperture) vertically jointed to the two coupling apertures of the same measurement widthwise (i.e., one stacked on top and the other underneath) to achieve the symmetrical beam. The rectangular waveguide is 97.60 mm and 46.80 mm in width (a) and height (b), respectively, to propagate the WLAN frequency band of 2.412–2.484 GHz. Simulations were carried out to determine the optimal antenna parameters and an antenna prototype was subsequently fabricated and tested. The simulated beamwidths in theE- andH-planes at-3 dB were equally 67° (i.e., 67° for both theE- andH-planes) and at-10 dB also equally 137°, while the measured results at-3 dB were equally 65° and at-10 dB equally 135°. The simulation and measured results are thus in good agreement. The simulated and measured antenna gains are, respectively, 8.25 dBi and 9.17 dBi. The findings validate the applicability of the antenna as the prime feed for rotationally symmetric parabolic reflectors.

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Section: The Antenna Designmentioning

confidence: 99%

Design of Symmetrical Beam Triple-Aperture Waveguide Antenna for Primary Feed of Reflector

Nuangwongsa

Phongcharoenpanich

2016

International Journal of Antennas and Propagation

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“…For instance, a millimeter-wave CMOS cavity resonator based on rectangular waveguide was developed in a CMOS process [3]. As mentioned in Chapter 4 for Transmission Lines, advances in printed circuits, in general, and RFICs, in particular, allow waveguides to be realized compactly in multilayer CMOS structures.…”

Section: Waveguide Cavity Resonatorsmentioning

confidence: 99%

“…A rectangular cavity resonator was developed at millimeter-wave frequencies using a commercial standard 0.25-μm CMOS process [3]. Figure 5.32 shows the cross section of a typical CMOS configuration showing possible metal layers and via-hole interconnects.…”

Section: An Example Of Cmos Rectangular Cavity Resonatorsmentioning

confidence: 99%

Resonators

2015

Radio‐Frequency Integrated‐Circuit Engineering

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RESONATORSResonators are common and important components in radio frequency integrated circuits (RFICs). They are used in various circuits such as oscillators and filters. There are, in principle, two types of resonators: lumped-element and distributed resonators. In general, lumped-element resonators have a smaller size, but lower operating frequency and quality factor (Q) as compared to distributed resonators, which are made up of transmission lines or, in general, waveguide structures. 1 Advances in complementary metal oxide silicon (CMOS) technologies have made feasible good lumped-element resonators for RFICs. The compactness, particularly, makes lumped-element resonators popular in RFICs operating in the microwave regime. Lumped-element resonators also make their way into the millimeter-wave region. On the other hand, distributed resonators are attractive for RFIC design at millimeter-wave frequencies, particularly in the high millimeter-wave end, where lumped-element resonators either are not feasible or have lower quality than their distributed counterparts in current CMOS processes. In this chapter, we will present the analysis and design of both lumped-element and distributed resonators that can be implemented in the CMOS processes. FUNDAMENTALS OF RESONATORSResonators or resonant circuits, as the name implies, are used in principle to store the energy of signals. As signals contain both electric and magnetic energies, a resonator is electrically represented by a combination of an inductor and a capacitor (for ideal resonators) together with a resistor (for nonideal resonators), which account for the magnetic energy, electric energy, and loss in the resonator, respectively. A resonator is also sometimes called "tank circuit" in oscillators. A resonator type is dictated by its equivalent electrical representation as series or parallel resonator. As such, a resonator -whether lumped, distributed, or a combination of lumped and distributed structures -may be classified as a series or parallel resonator depending on its electrical equivalent circuit -not the actual constituent elements themselves or the resonator's configuration. Also, a general circuit consisting of multiple inductors, capacitors, and distributed elements may behave as a parallel or series resonator at a certain frequency depending on its equivalent-circuit representation at 1 Transmission lines are basically one class of waveguides or wave-guiding structures.Radio-Frequency Integrated-Circuit Engineering, First Edition. Cam Nguyen.

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“…Unfortunately, the low-resistivity silicon substrate in the standard CMOS always suffers from high-dielectric loss and brings out a dramatic crosstalk to the devices integrated on the silicon wafers. However, benefited from the standard multilayer mental CMOS technology, by introducing a ground shield between a passive component and the silicon substrate [2], a current-return path is formed, minimizing the electric field leaking into the silicon region and reducing the energy loss to the silicon substrate, thereby low-loss transmission lines, high-Q factor resonators and mmwave filters have been realized by standard CMOS process [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…A Gilbert mixer topology is widely used in the RF mixer design [1,2] when compared with the passive mixer design [3], because the local frequency (LO) pumping power is not large especially for the bipolar transistors employed in the mixer core. Both RF and IF bandwidths of active mixers were measured in [4,5].…”

Section: Introductionmentioning

confidence: 99%

Size reduction of microwave and millimeter‐wave passive circuits by UC‐PBG in standard 0.18‐μm CMOS technology

Lin¹,

Yang²,

Sun³

2008

Micro & Optical Tech Letters

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A Novel Multilayer Aperture-Coupled Cavity Resonator for Millimeter-Wave CMOS RFICs

Cited by 32 publications

References 11 publications

Design of Symmetrical Beam Triple-Aperture Waveguide Antenna for Primary Feed of Reflector

Design of Symmetrical Beam Triple-Aperture Waveguide Antenna for Primary Feed of Reflector

Resonators

Size reduction of microwave and millimeter‐wave passive circuits by UC‐PBG in standard 0.18‐μm CMOS technology

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