A 28 GHz four-channel phased-array transceiver in 65-nm CMOS technology for 5G applications

Ameen, Hesham A.; Abdelmonem, Kareem; El‐Gamal, Mohammed I.; Mousa, Mohamed; Hamada, Omaira; Zakaria, Yahia; Abdalla, Mohamed A. Y.

doi:10.1109/icm.2017.8268871

Cited by 8 publications

(3 citation statements)

References 8 publications

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“…In summary, ultra-wideband coverage has become more critical, and ultra-wideband receiving systems have a broader application prospect. At present, the commonly used technical solutions for receiver systems are rough as follows: superheterodyne architecture, [8][9][10][11][12][13][14] zerointermediate frequency (IF) architecture, [15][16] and low-IF architecture. [17][18] The design of this article uses the superheterodyne architecture as the final technical solution.…”

Section: Introductionmentioning

confidence: 99%

A tunable ultra‐wideband superheterodyne radio frequency receiver with high‐image‐rejection levels

Wang

et al. 2022

Int J RF Mic Comp-Aid Eng

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This article presents the superheterodyne radio frequency (RF) receiver composed of two receiving channels, which can realize an ultra-wide receiving frequency band. The RF signal can be received and demodulated in a variable frequency band by controlling the voltage of RF switches, which makes the RF signal enter the appropriate frequency conversion channel and tuning the local oscillator frequency according to the RF signal frequency. Therefore, the receiver realizes the adjustable working frequency band and an ultra-wide receiving frequency band. The designed superheterodyne RF receiver is simulated, manufactured, and measured. Finally, the article achieves a tunable ultra-wideband superheterodyne RF receiver with an image-rejection architecture that can provide rejection of more than 29.0 dB. The receiving frequency band of the receiver is 2.5 GHz -12 GHz. When the proposed receiver link receives multiple types of quadrature signals with a symbol rate of 50 M Baud, the error vector magnitude is less than 1.90%.

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Section: Introductionmentioning

confidence: 99%

A tunable ultra‐wideband superheterodyne radio frequency receiver with high‐image‐rejection levels

Wang

et al. 2022

Int J RF Mic Comp-Aid Eng

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“…Phased arrays have been an important research area of microwave engineering since the 1960s, 1 mostly due to their capabilities to steer the main beam 2– 4 and to synthesize radiation patterns with nulls at a given set of angles 5–8 or with multibeam configuration, 9–11 listed as an illustration of phased arrays versatility. Designed mainly for military applications, 1 active electronically scanned arrays (AESA) were considered sensitive technology until the last few years and only recently they have been used in civilian applications, such as 5G communication systems 12–16 and mobile systems 17,18 . Furthermore, phased arrays can also be employed in medical equipment for verification of vital signs and imaging 19,20 …”

Section: Introductionmentioning

confidence: 99%

Closed‐loop controlled microwave beamformer

Fabiani

Oliveira

Vieira

et al. 2021

Int J RF Mic Comp-Aid Eng

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This article presents the design and tests of a closed‐loop controlled microwave beamformer for phased arrays. The proposed circuit owns an internal reference signal used to automatically set predefined amplitudes and phases of the beamformer branches. This signal is applied to the branches through directional couplers with high directivity and propagates in them similar to the actual signals coming from the antenna array. As a consequence of this architecture, we found that the impedance mismatch between the antennas and the beamformer as well as the mutual coupling in the array is taken into account during calibration, resulting in a more accurate adjustment of amplitudes and phases. In this work, the influence of the mutual coupling between the antennas and the directivity of the couplers on the beamforming calibration uncertainty is also analyzed. From the derived uncertainties, the corresponding pattern degradation is evaluated by performing Monte Carlo simulations. It is shown that using couplers with low directivity together with tightly coupled arrays can produce undesirable main lobe squints of up to 4.5°, main lobe level deviations of up to 4.2 dB, and side lobe level variations of up to 24 dB. On the other hand, the use of high directivity couplers can mitigate these problems. Lastly, the validation of the designed circuit is conducted in two stages: bench tests and measurements in an anechoic chamber with an array of six printed monopoles operating at 2.2 GHz. Amplitude and phase calibration errors less than 0.5 dB and 3°, respectively, were observed in the bench tests.

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“…It is an ultimate goal of all scientists and researchers to build a wireless world in which all devices are connected with one another wirelessly. In Today's modern wireless era, antennas with high radiation efficiency, compact size, high gain, and large bandwidth are required [2,3]. Antennas are an essential part of any wireless communication systems.…”

Section: Introductionmentioning

confidence: 99%

Higher order mode dielectric resonator antenna excited using microstrip line

2020

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In this paper, the square-shaped dielectric resonator antenna (DRA) operating on higher order (𝑇𝐸𝛿13) mode for the fifth generation (5G) communication applications is presented. The proposed DR antenna is excited by using a microstrip feed line and designed at the operating frequency of 28 GHz. The Rogers RT/Duroid 5880 material having a thickness of 0.254mm and a dielectric constant of 2.2 is used for the substrate. The commercial CST microwave studio (CST MWS) is used for the optimization and simulation of the antenna design. The reflection coefficient, antenna gain, radiation efficiency, VSWR and radiation pattern are studied. A -10dB bandwidth of 4.6% (1.3 GHz) for VSWR2 with a gain of 5 dBi and radiation efficiency of 89%. The proposed antenna design is suitable for future 5G wireless communication applications.

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A 28 GHz four-channel phased-array transceiver in 65-nm CMOS technology for 5G applications

Cited by 8 publications

References 8 publications

A tunable ultra‐wideband superheterodyne radio frequency receiver with high‐image‐rejection levels

A tunable ultra‐wideband superheterodyne radio frequency receiver with high‐image‐rejection levels

Closed‐loop controlled microwave beamformer

Higher order mode dielectric resonator antenna excited using microstrip line

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