Enclosure Effect on Microwave Power Amplifier

Dhar, Jolly; Arora, R.; Dasgupta, A.; Rana, and S. S.

doi:10.2528/pierc10112604

Cited by 12 publications

(12 citation statements)

References 11 publications

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“…To achieve electromagnetic compatibility (EMC), conducted emissions from switching power converters, circuit breaker, and etc. Should comply with the EMI regulatory limits [6][7][8][9]. Due to the results susceptibility investigations in combination with the known capabilities of available intentional electromagnetic interference (IEMI) sources, it become obvious that it is necessary to protect critical systems and infrastructure [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Presentation of an Algorithm for Secure Data Transmission based on Optimal Route Selection during Electromagnetic Interference Occurrence

Mohammadi

Amirani

Faghihi

2018

IJECE

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This paper proposes a comprehensive algorithm for secure data transmission via communication conductors considering route optimization, shielding and data authentication. Using of appropriate coding method causes more efficiency for suggested algorithm during electromagnetic field attack occurrence. In this paper, MOM simulation via FIKO software is done for field distribution. Due to critical situation of malfunctioning of data transferring, appropriate shield is designed and examined by shielding effectiveness (SE) criterion resulted of MOM simulation; finally to achieve reliability of data security, MAC hash function is used for space with field attack probability, turbo code is employed.

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Section: Introductionmentioning

confidence: 99%

Presentation of an Algorithm for Secure Data Transmission based on Optimal Route Selection during Electromagnetic Interference Occurrence

Mohammadi

Amirani

Faghihi

2018

IJECE

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“…Several materials and structures such as dielectric substrate, IC, cavity for IC mounting, waveguide (WG) are used and are integrated into the compact-volume package. Therefore, they can lead troubles such as unwanted substrate modes [6], cavity resonance [7], feedback, or crosstalk due to discontinuities [8,9]. In the previous publications [6][7][8][9], these phenomena were well analyzed and valid models on mechanism were presented.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, they can lead troubles such as unwanted substrate modes [6], cavity resonance [7], feedback, or crosstalk due to discontinuities [8,9]. In the previous publications [6][7][8][9], these phenomena were well analyzed and valid models on mechanism were presented. In order to avoid them, resistivity value of the flip-chip carrier [6], resonance condition of the cavity [7], chip mounting configurations [8], and resistive coating on the lid [10] had been investigated.…”

Section: Introductionmentioning

confidence: 99%

“…In the previous publications [6][7][8][9], these phenomena were well analyzed and valid models on mechanism were presented. In order to avoid them, resistivity value of the flip-chip carrier [6], resonance condition of the cavity [7], chip mounting configurations [8], and resistive coating on the lid [10] had been investigated. Various modules [1,2,6,11] have been successfully implemented by reflecting these investigations.…”

Section: Introductionmentioning

confidence: 99%

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Waveguide Integrated High-Gain Amplifier Module for Millimeter-Wave Applications

Lee¹

2015

PIER Letters

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Abstract-In this paper, a high-gain amplifier module has been presented for millimeter wave applications. In order to suppress oscillation of the high-gain amplification block, a rectangular waveguide (WG) is fully integrated into the metal case, on which a cascaded two-stage amplifier is mounted. Due to the integrated WG, additional microstrip line (MSL)-to-WG transitions are required. Therefore, a low-loss and wide-band WG-to-MSL transition is designed and fabricated on a 5 mil thick RT5880 substrate. Two sets of WG-to-MSL transitions in back-to-back structure are assembled in the metal case for the high-gain amplifier module and are characterized. The measured transition loss and operational return-loss (S 11 ) bandwidth less than −10 dB are less than −0.44 dB/a transition and 15.9 GHz from 34.1 to 50 GHz, respectively. The fabricated high-gain amplifier module shows a high gain over 39.7 dB from 38 to 41 GHz. At 38.7 GHz, its maximum gain of 44.25 dB is achieved.

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“…Power amplifier with high efficiency can reduce system power consumption, and with high linearity can eliminate amplitude clipping, improve the quality of wireless communication service. At present, the application of multi-carrier technique and many kinds of modulation has enlarged the peak-to-average power ratio of signals, as a result, the efficiency enhancement technology with linearity improvement technology is becoming more and more important, and the high efficiency with high linearity power amplify technique is gradually becoming a hot issue in today's research [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Design of Linearity Improved Asymmetrical Gan Doherty Power Amplifier Using Composite Right/Left-Handed Transmission Lines

Feng¹,

Liu²,

Yu³

et al. 2013

PIER B

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Abstract-A highly efficient asymmetrical GaN Doherty power amplifier using traditional λ/4 transmission line and an asymmetrical GaN Doherty power amplifier (DPA) using composite right/lefthanded transmission lines (CRLH-TL) for linearity improvement are presented in this paper. The CRLH-TL is designed to suppress the second harmonic of the output of the carrier amplifier. This DPA using CRLH-TL is designed for 3.5 GHz LTE-Advanced Application with 100 MHz bandwidth and 37 dBm average output power, the carrier and peaking amplifiers are fabricated with the same 30 W GaN HEMT and unevenly driven in purpose of maintaining high efficiency at back-off power (BOP) region. At 9-dB and 6-dB BOP, the DE achieves 30% and 40.1%, respectively, and the adjacent channel power ratio (ACPR) are less than −37.1 dBc for 40 MHz 16 QAM signal at 37 dBm. In addition, the further linearization of the DPA is realized by using digital predistortion (DPD), the ACPRs are improved to −49.6 dBc for 40 MHz 16 QAM signal. The measured results show linearity improvement compared with the traditional DPA.

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Enclosure Effect on Microwave Power Amplifier

Cited by 12 publications

References 11 publications

Presentation of an Algorithm for Secure Data Transmission based on Optimal Route Selection during Electromagnetic Interference Occurrence

Presentation of an Algorithm for Secure Data Transmission based on Optimal Route Selection during Electromagnetic Interference Occurrence

Waveguide Integrated High-Gain Amplifier Module for Millimeter-Wave Applications

Design of Linearity Improved Asymmetrical Gan Doherty Power Amplifier Using Composite Right/Left-Handed Transmission Lines

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