Millimeter-wave wide-band amplifiers using multilayer MMIC technology

Imaoka, Toshikazu; Banba, S.; Minakawa, Akira; Imai, N.

doi:10.1109/22.552037

Cited by 16 publications

(6 citation statements)

References 14 publications

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“…It has been shown that the losses of the TFMSs are inversely proportional to the substrate thickness and proportional to surface resistivity [12]. To save chip area, designers often meander the TFMSs, thus making very compact passive components in the MMICs [12]- [15], [18], [19] and hybrid microwave integrated circuits (HMICs) [20], [21]. For example, a wide-band 6-18-GHz monolithic magic-T occupying chip size of 0.9 mm 1.0 mm was reported, which included two quarter-wavelength TFMSs, and transitions of slotline-to-TFMS (0.2 mm 0.4 mm each) and TFMS-to-coplanar waveguide (CPW) [13].…”

Section: Introductionmentioning

confidence: 99%

Synthetic Quasi-TEM Meandered Transmission Lines for Compacted Microwave Integrated Circuits

Chen

Tzuang

2004

IEEE Trans. Microwave Theory Techn.

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This paper presents a two-dimensional transmission line (2-D TL) that supports quasi-TEM propagation mode and reduces problems associated with compacted meandering of microstrip (MS) on propagation constants and the characteristic impedances commonly observed in conventional one-dimensional MSs. The proposed 2-D TL comprises two layers of metallic surfaces on either side of a dielectric substrate. The top metal surface is a meandered connection of a unit cell with a central patch and connecting arms. The bottom surface is a meshed 2-D periodical ground plane, whose etched portion complements the patch portion of the top surface, forming a complementary-conducting-strip (CCS) TL, enabling a combination of an MS and MS with the tuning septa in a unit cell. Both theoretical and experimental investigations of the CCS TL agree well and demonstrate that it is much less susceptible to the effects of meanderings on the propagation constant and characteristic impedance than an MS for the same meandered pattern. Two design examples are presented to demonstrate the potential for a CCS TL for miniaturizing microwave passive circuits with minimal losses. The first example involves a 5.4-GHz CCS four-port rat-race hybrid realized in RO4003 and reduces the area of original MS design by 87%. The second example illustrates the applicability of a CCS TL to a monolithic RF integrated circuit using a first-pass design of a 5.2-GHz CMOS oscillator incorporating a CCS TL as a resonator with an area totaling 500 600 m 2 including pads base on Taiwan Semiconductor Manufacturing Company's 0.25-m 1P5M CMOS process techniques.

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Section: Introductionmentioning

confidence: 99%

Synthetic Quasi-TEM Meandered Transmission Lines for Compacted Microwave Integrated Circuits

Chen

Tzuang

2004

IEEE Trans. Microwave Theory Techn.

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“…It is well known, from the S-parameters of a balanced amplifier, that if the two amplifiers are identical, then the best return loss are achieved (S 11 = 0 and S 22 = 0) and therefore the return loss depend on the combiner/divider [13]. In this context several balanced amplifiers have been proposed in [14][15][16][17][18][19][20][21][22]. From Table 1, given in [14], it can be found that the maximum FBW of published balanced amplifiers is 97.9%.…”

Section: Implementation and Results Of A Balanced Amplifier By Using mentioning

confidence: 99%

A Wideband Quadrature Power Divider/Combiner and Its Application to an Improved Balanced Amplifier

Olvera‐Cervantes

Corona‐Chávez²,

Chávez‐Pérez³

et al. 2013

PIER C

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Abstract-In this paper, a novel broadband quadrature power divider and its robust design method are presented. The QPD consists of a two-section power divider in combination with a 90-degree differential phase shifter. The two-section power divider is calculated to provide equal power split, high output port isolation, and good return loss at all three ports. The differential phase shifter consists of a composed right/left handed transmission line and pure-right handed transmission line named CRLHu-TL and PRHd-TL, respectively. The CRLHu-TL is divided into two parts; one of them consists of a pure-left handed section whose parasitic pad effects are represented by means of a pure right handed section named PRHp. On the other hand, the PRHd-TL is composed by a microstrip transmission line of characteristic impedance 50 Ω and electrical length 50 • and two sections equivalents to PRHp. The proposed circuit is applied to develop a broadband balanced amplifier with measured fractional bandwidth (FBW) of 124.4% at the center frequency of 2 GHz.

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“…In , they are similar works about using the multilayer technology for in‐phase power divider. By the multilayer monolithic microwave integrated circuit (MMIC) technique , a millimeter balanced amplifier could obtain the wide operating band performance. The wide‐band branch‐line coupler that covers several frequency bands is highly demanded, and it can be achieved by cascading two or more sections of branch lines together or adding additional phase inverter .…”

Section: Introductionmentioning

confidence: 99%

A dual‐band balanced amplifier using three‐layer technology

Hou

Chiu

2014

Micro & Optical Tech Letters

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In this work, we demonstrate a low power and low NF W-band LNA using standard 90-nm CMOS technology. The LNA comprises three CS stages. The LNA consumes 21.1 mW, achieving group delay variation smaller than 66.5 ps for frequencies 70-90 GHz, and high and flat S 21 of 13.1 6 1.5 dB for frequencies 72-84 GHz. In addition, the LNA achieves minimum NF of 6.2 dB at 78 GHz and NF of 6.8 6 0.6 dB for frequencies 75-82 GHz, one of the best NF results ever reported for a W-band CMOS or SiGe BiCMOS LNA. The impressive results from this work signify the high potential of the proposed LNA architecture in W-band transceiver applications.ABSTRACT: A multilayer technology is applied to design a dual-band branch-line coupler for the dual-band balanced amplifier. The proposed coupler is designed based on a three-layer printed circuit board. The dual-band operation is achieved by four additional shunt stubs at the middle layer, while the upper layer is the core and active circuits layer and the bottom is ground layer. The proposed coupler with equal power division is designed at two frequencies of 1.1 and 1.9 GHz. Besides, a balanced amplifier is also designed which achieves gain of 11.6 and 10.1 dB at 1.1 and 1.9 GHz, respectively.

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Millimeter-wave wide-band amplifiers using multilayer MMIC technology

Cited by 16 publications

References 14 publications

Synthetic Quasi-TEM Meandered Transmission Lines for Compacted Microwave Integrated Circuits

Synthetic Quasi-TEM Meandered Transmission Lines for Compacted Microwave Integrated Circuits

A Wideband Quadrature Power Divider/Combiner and Its Application to an Improved Balanced Amplifier

A dual‐band balanced amplifier using three‐layer technology

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