17.3 A 60GHz on-chip linear radiator with single-element 27.9dBm Psat and 33.1dBm peak EIRP using multifeed antenna for direct on-antenna power combining

2017 ◽  
Author(s):  
Taiyun Chi ◽  
Fei Wang ◽  
Sensen Li ◽  
Min-Yu Huang ◽  
Jong Seok Park ◽  
...  
Keyword(s):  
Single Element ◽  
Power Combining ◽  
On Chip ◽  
Linear Radiator

scholarly journals A Fully Integrated Compact Outphasing CMOS Power Amplifier Using a Parallel-Combining Transformer with a Tuning Inductor Method

Electronics ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 257 ◽  
Author(s):  
Se-Eun Choi ◽  
Hyunjin Ahn ◽  
Joonhoi Hur ◽  
Kwan-Woo Kim ◽  
Ilku Nam ◽  
...  
Keyword(s):  
Output Power ◽  
Power Amplifier ◽  
Cmos Process ◽  
Power Combining ◽  
Fully Integrated ◽  
Term Evolution ◽  
Class D ◽  
Adjacent Channel ◽  
On Chip

This work presents a compact on-chip outphasing power amplifier with a parallel-combining transformer (PCT). A series-combining transformer (SCT) and PCT are analyzed as power-combining transformers for outphasing operations. Compared to the SCT, which is typically used for on-chip outphasing combiners, the PCT is much smaller. The outphasing operations of the transformer combiners and class-D switching PAs are also analyzed. A tuning inductor method is proposed to improve the efficiency of class-D power amplifiers (PAs) with power-combining transformers in the out-of-phase mode. The proposed PA was implemented with a standard 0.18 µm CMOS process. The measured maximum drain efficiency is 37.3% with an output power of 22.4 dBm at 1.7 GHz. A measured adjacent channel leakage ratio (ACLR) of less than −30 dBc is obtained for a long-term evolution (LTE) signal with a bandwidth of 10 MHz.

scholarly journals Eight Element Side Edged Framed MIMO Antenna Array for Future 5G Smart Phones

Micromachines ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 956 ◽  
Author(s):  
Saad Hassan Kiani ◽  
Ahsan Altaf ◽  
Mujeeb Abdullah ◽  
Fazal Muhammad ◽  
Nosherwan Shoaib ◽  
...  
Keyword(s):  
Liquid Crystal Display ◽  
Multiple Input Multiple Output ◽  
Cost Effective ◽  
Antenna System ◽  
Human Hand ◽  
Single Element ◽  
Performance Parameters ◽  
Mimo Antenna ◽  
Principal Performance ◽  
On Chip

This paper presents a novel design of a Multiple Input Multiple Output (MIMO) antenna system for next generation sub 6 GHz 5G and beyond mobile terminals. The proposed system is composed of a main board and two side boards. To make the design cost-effective, FR4 is used as a substrate. The design is based on a unit monopole antenna etched at the side substrate. The single element is resonating at 3.5 GHz attaining a 10 dB bandwidth of 200 MHz and a 6 dB bandwidth of 400 MHz. The single element is then transformed into an MIMO array of 8-elements with an overall dimension of 150 mm × 75 mm × 7 mm, providing pattern diversity characteristics and isolation better than −12 dB for any two radiating elements. A number of studies such as effects of human hand on the system that includes single hand mode and dual mode scenarios and the effects of Liquid Crystal Display (LCD) over the principal performance parameters of the system are presented. The envelop correlation coefficient (ECC) is computed for all the scenarios and it is found that ECC is less than 0.1 for any case and maximum channel capacity is 38.5 bps/Hz within the band of interest. The main advantage of the proposed design over available designs in the literature is that almost all of the main substrate is empty providing wide space for different sensors, systems, and mobile technology components. A brief literature comparison of the proposed system is also presented. To validate the proposed model, a prototype is fabricated and results are presented. This design can be applied on higher frequencies to future micromachines for on chip communications using same theocratical approach as the space for higher frequencies in mmwave spectrum has been reserved. The simulated results are in an excellent agreement with the measured results. All the main performance parameters of the design are calculated and compared with the measured results wherever possible.

Active Multiple Feed On-Chip Antennas With Efficient In-Antenna Power Combining Operating at 200–320 GHz

2017 ◽  
Vol 65 (2) ◽  
pp. 416-423 ◽  
Author(s):  
Benjamin Goettel ◽  
Philipp Pahl ◽  
Christoph Kutschker ◽  
Stefan Malz ◽  
Ullrich R. Pfeiffer ◽  
...  
Keyword(s):  
Power Combining ◽  
On Chip

Active multiple-feed on-chip radiator with in-antenna power-combining approach

2016 ◽  
Author(s):  
Benjamin Goettel ◽  
Daniel Mueller ◽  
Heiko Gulan ◽  
Akanksha Bhutani ◽  
Thomas Zwick
Keyword(s):  
Power Combining ◽  
On Chip

scholarly journals Broadband on-chip single-photon spectrometer

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Risheng Cheng ◽  
Chang-Ling Zou ◽  
Xiang Guo ◽  
Sihao Wang ◽  
Xu Han ◽  
...  
Keyword(s):  
Single Photon ◽  
Astronomical Observation ◽  
Single Element ◽  
Single Photons ◽  
Quantum Communications ◽  
Wavelength Division ◽  
Wavelength Division Multiplexed ◽  
Small Device ◽  
On Chip ◽  
Wavelength Detection

Abstract Single-photon counters are single-pixel binary devices that click upon the absorption of a photon but obscure its spectral information, whereas resolving the color of detected photons has been in critical demand for frontier astronomical observation, spectroscopic imaging and wavelength division multiplexed quantum communications. Current implementations of single-photon spectrometers either consist of bulky wavelength-scanning components or have limited detection channels, preventing parallel detection of broadband single photons with high spectral resolutions. Here, we present the first broadband chip-scale single-photon spectrometer covering both visible and infrared wavebands spanning from 600 nm to 2000 nm. The spectrometer integrates an on-chip dispersive echelle grating with a single-element propagating superconducting nanowire detector of ultraslow-velocity for mapping the dispersed photons with high spatial resolutions. The demonstrated on-chip single-photon spectrometer features small device footprint, high robustness with no moving parts and meanwhile offers more than 200 equivalent wavelength detection channels with further scalability.

On-chip power-combining techniques for watt-level linear power amplifiers in 0.18 μm CMOS

2015 ◽  
Vol 36 (9) ◽  
pp. 095002 ◽  
Author(s):  
Zhixiong Ren ◽  
Kefeng Zhang ◽  
Lanqi Liu ◽  
Cong Li ◽  
Xiaofei Chen ◽  
...  
Keyword(s):  
Power Amplifiers ◽  
Power Combining ◽  
On Chip
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