A Compact Broadband PHEMT MMIC Power Amplifier for K through Ka-band Applications

Lee, Young Chul; Park, Chul Soon

doi:10.1078/1434-8411-54100174

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…In general, a radial stub has been used at the impedance matching networks for the broadband smallsignal gain [10]. It can also be utilized for the wideband E-probe.…”

Section: Design Of the E-probementioning

confidence: 99%

Broadband Transition From Microstrip Line to Waveguide Using a Radial Probe and Extended GND Planes for Millimeter-Wave Applications

Ariffin¹,

Isa²,

Malekmohammadi³

2016

PIER Letters

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A broadband microstrip line-to-waveguide (MSL-to-WG) transition is developed for E-band applications. In order to achieve a sufficient and broadband coupling between the microstrip line (MSL) and waveguide (WG), a radial electric probe at the end of the MSL and extended ground (GND) planes on the dielectric substrate are proposed. Results are compared against a simple transition (S-Tr) with a straight electric probe. For the case of operational bandwidth (BW) for an input return loss (S 11) below −20 dB, the proposed transitions using the radial probe and extended GND planes show the BW enhancement of 33.8% and 61.9%, respectively, compared to the S-Tr. The proposed and simple transitions were fabricated on a low-loss liquid crystal polymer (LCP) dielectric substrate. The measured bandwidth (BW) for S 11 below −10 dB of the proposed transition is over 28 GHz, which is satisfied at all test frequencies from 67 to 95 GHz. Its measured insertion loss can be analyzed as −1.33 and −1.41 dB per transition at 70 and 80 GHz, respectively, considering the loss contribution of the cable adapter and waveguide transition.

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“…In general, a radial stub has been used at the impedance matching networks for the broadband smallsignal gain [10]. It can also be utilized for the wideband E-probe.…”

Section: Design Of the E-probementioning

confidence: 99%

Broadband Transition From Microstrip Line to Waveguide Using a Radial Probe and Extended GND Planes for Millimeter-Wave Applications

Ariffin¹,

Isa²,

Malekmohammadi³

2016

PIER Letters

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“…This is because enhancement in satellite communications (SAT) is mainly concerned with high versatility, compactness, performance, low cost as well as low weight [9]. A fixed satellite service for wireless multimedia and internet access has generated renewed interest in the Ka band, using downlink frequencies of 17.72-21.2 GHz and uplink frequencies of 27.52-30 GHz in order to properly accommodate various future communications systems [10]. Satellite communication for the military (MKa band) offers an even wider bandwidth for high speed Internet access (30 GHz for TX and 20 GHz for RX) [11].…”

Section: Introductionmentioning

confidence: 99%

A CPW-fed Sigma-shaped MIMO Antenna for Ka Band and 5G Communication Applications

Madhav¹,

Devi²,

Anilkumar³

2018

JTIT

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This article presents a MIMO compact antenna measuring 45×45×1.6 mm, on the FR4 substrate, proposed for Ka band and 5G communication applications. The proposed design is suitable to overcome the issues connected with massive MIMO. It has four-sigma-shaped radiating elements and a c-shaped ground plane with coplanar waveguide feeding. Its compact dimensions suit it for most existing communications systems. The aerial operates in the 21-30 GHz range, which covers Ka and 5G communication bands. The proposed antenna exhibits the average efficiency of more than 76% within its operating band and gives a minimum signal to noise plus interference ratio. The presented antenna covers several services, such as Ka band satellite downlink applications and future 5G communication applications.

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A Compact Broadband PHEMT MMIC Power Amplifier for K through Ka-band Applications

Cited by 2 publications

References 4 publications

Broadband Transition From Microstrip Line to Waveguide Using a Radial Probe and Extended GND Planes for Millimeter-Wave Applications

Broadband Transition From Microstrip Line to Waveguide Using a Radial Probe and Extended GND Planes for Millimeter-Wave Applications

A CPW-fed Sigma-shaped MIMO Antenna for Ka Band and 5G Communication Applications

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