New classes of miniaturized planar Marchand baluns

Fathelbab, Wael M.; Steer, M.B.

doi:10.1109/tmtt.2005.845707

Cited by 56 publications

(27 citation statements)

References 10 publications

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“…Marchand baluns are the among the simplest and most popular balun structures to design, due to their wide operating range and ease of implementation [21]. Marchand originally designed his balun using two coaxial transmission lines, each a quarter wavelength long at the design frequency [20,23].…”

Section: Figure Iii-13 New Drain Currents and Voltages Using A Non-idmentioning

confidence: 99%

“…As was stated earlier, designers working in the gigahertz ranges who want to take advantage of The flexibility of this structure is one of its advantages, many researchers have developed numerous ways to configure these baluns to fit nearly any frequency and impedance [21,24]. To begin the design of this balun you first need to determine the physical quarter wavelength of the center frequency, almost all the other parameters of this balun are governed by the limits of your manufacturing process.…”

Section: Figure Iii-13 New Drain Currents and Voltages Using A Non-idmentioning

confidence: 99%

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Common-mode termination requirements in concurrent dual-band push-pull power amplifiers

Montgomery

Neihart

2017

2017 IEEE International Symposium on Circuits and Systems (ISCAS)

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Section: Figure Iii-13 New Drain Currents and Voltages Using A Non-idmentioning

confidence: 99%

Section: Figure Iii-13 New Drain Currents and Voltages Using A Non-idmentioning

confidence: 99%

Common-mode termination requirements in concurrent dual-band push-pull power amplifiers

Montgomery

Neihart

2017

2017 IEEE International Symposium on Circuits and Systems (ISCAS)

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“…In [32], the Marchand balun was also implemented in (Bi)CMOS technology at 60 GHz. Different techniques to miniaturize the dimension of the Marchand balun have been investigated in [31], [33], and [34]. Fig.…”

Section: Miniature-sized Marchand Balunmentioning

confidence: 99%

A 94-GHz Extremely Thin Metasurface-Based BiCMOS On-Chip Antenna

Pan

Caster

Heydari

et al. 2014

IEEE Trans. Antennas Propagat.

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Abstract-A novel fully on-chip antenna based on a metasurface fabricated in a 180-nm BiCMOS process is presented. Inspired by the concept of high impedance surface (HIS), this metasurface is not used as a reflector below an antenna as commonly done. Instead, it is used as a radiator by itself. The extremely thin metasurface is composed of a patterned top two metal layers and the ground plane placed in the lowest metal layer in the process. The ground plane on the lowest metal layer of the process provides a solid shielding from the substrate and other possible circuitries. The fundamental of the antenna radiation and design are described. The measured antenna shows 2.5 dBi peak broadside gain with 8-GHz 3-dB gain bandwidth and an impedance bandwidth larger than 10 GHz. In its class of broadside radiating fully on-chip antennas, with a ground plane on the lower metal layer of the process, and without additional fabrication processing, this structure achieves the widest impedance bandwidth at W-band and one of the highest gain and gain bandwidth. It is noteworthy that this is achieved with an extremely thin antenna substrate thickness and a shielding ground plane.Index Terms-Artificial magnetic conductor, high-impedance surface, leaky wave antenna, Marchand balun, millimeter wave, millimeter wave antennas, on-chip antenna.

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“…In the past years, a lot of improvements on baluns have been proposed for lower loss and better phase performance [1,2,3,4]. However, the studies of baluns in mixers are still limited to the impedance transformation [5] and expansion of RF bandwidth [6].…”

Section: Introductionmentioning

confidence: 99%

A GaAs passive mixer with an ultra-wide IF bandwidth

Zhang

Wang

et al. 2017

IEICE Electron. Express

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This paper presents a GaAs double-balanced mixer (DBM) applying an improved Marchand balun. This structure is achieved by adding a frequency-tuning tail capacitor to the end of the imbalanced coil. By using this tail capacitor, the size of balun is greatly reduced and the IF bandwidth is largely extended. The equivalent circuit modeling and working principle of this structure are described in this paper. The RF bandwidth of the proposed mixer is from 6 GHz to 18 GHz. The measurement result shows that the mixer's IF bandwidth ranges from DC to 8 GHz with the conversion loss less than 10 dB. Because of the good amplitude and phase performance of the proposed balun, the LO to IF isolation is also improved. The total chip area is 950 × 600 µm 2 .

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New classes of miniaturized planar Marchand baluns

Cited by 56 publications

References 10 publications

Common-mode termination requirements in concurrent dual-band push-pull power amplifiers

Common-mode termination requirements in concurrent dual-band push-pull power amplifiers

A 94-GHz Extremely Thin Metasurface-Based BiCMOS On-Chip Antenna

A GaAs passive mixer with an ultra-wide IF bandwidth

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