Concurrent Dual-Band Class-E Power Amplifier Using Composite Right/Left-Handed Transmission Lines

Ji, Seung Hun; Cho, Choon Sik; Lee, J.W.; Kim, Jaeheung

doi:10.1109/tmtt.2007.895236

Cited by 53 publications

(20 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Then the structure was enhanced in order to operate at two independent frequencies [2]. From then on, many efforts have been made to develop dual-band PAs [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Design of a Dual-Band Doherty Power Amplifier Utilizing Simplified Phase Offset-Lines

Zheng¹,

Liu²,

Chen³

et al. 2014

PIER C

View full text Add to dashboard Cite

Abstract-This paper proposes a novel design methodology for dual-band Doherty power amplifier (DPA) with simplified offset-lines. The methodology is validated with the design and fabrication of a 10 W GaN based DPA for Global System for Mobile Communications (GSM) and Wideband Code Division Multiple Access (WCDMA) applications at 0.90 GHz and 2.14 GHz, respectively. In the measurement results, the DPA achieves a drain efficiency (DE) of 51.2% with an output power of 37.2 dBm at the 6.5 dB output power back-off (OBO) from the saturated output power at 0.90 GHz, and a DE of 39.9% with an output power of 37.4 dBm at the 6.5 dB OBO at 2.14 GHz. Linearity results using 20 MHz 16 QAM signal show an adjacent channel leakage ratio (ACLR) of −48 dBc and −43 dBc with the average output power of 37.2 dBm and 37 dBm at 0.90 GHz and 2.14 GHz, respectively.

show abstract

“…Then the structure was enhanced in order to operate at two independent frequencies [2]. From then on, many efforts have been made to develop dual-band PAs [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Design of a Dual-Band Doherty Power Amplifier Utilizing Simplified Phase Offset-Lines

Zheng¹,

Liu²,

Chen³

et al. 2014

PIER C

View full text Add to dashboard Cite

show abstract

“…Other dual-band components based on CSRR-loaded lines and CL-loaded lines (lines loaded with series capacitances and shunt inductances) have been reported in [74][75][76][77][78][79][80]. We would like also to mention that quad-band components (power dividers and branch line couplers) based on a fully planar approach, by using open resonators and other planar resonators, have been demonstrated [22].…”

Section: Multiband Componentsmentioning

confidence: 99%

“…Among guided wave components, metamaterial transmission lines have been applied to the design of enhanced bandwidth components [66][67][68][69][70][71][72][73], multiband components [16,22,64,65,[74][75][76][77][78][79][80], tightly coupled couplers [81][82][83][84][85], resonators [86], filters and diplexers [16-18, 44, 49-52, 56, 87-104], and so forth. In the field of antennas, the design of leaky wave antennas with scanning capability has been a notable contribution [14,[105][106][107][108][109][110][111][112] (however, novel antennas based on metamaterial concepts (b)…”

Section: Applications Of Metamaterials Transmission Lines (Part I): Brmentioning

confidence: 99%

Metamaterials for Wireless Communications, Radiofrequency Identification, and Sensors

Martín

2012

ISRN Electronics

View full text Add to dashboard Cite

This paper is focused on the application of concepts derived from metamaterials to the development of novel devices, circuits, and antennas of interest in wireless communications, radiofrequency identification (RFID), and sensors. Specifically, it is shown that artificial transmission lines based (or inspired) on metamaterials exhibit interesting properties, useful for the implementation of high-performance and compact devices as well as novel functional devices. Thanks to the presence of reactive loading elements in such artificial lines, the main line parameters, that is, the characteristic impedance and the phase constant, can be engineered. This has opened new paths for RF and microwave circuit and antenna design on the basis of impedance and dispersion engineering.

show abstract

“…Following this strategy, several dual band components have been implemented (see for instance [37][38][39][40]). Another approach consists on implementing such dualband artificial lines by means of a single unit cell, designed to satisfy the impedance and phase requirements at the operating frequencies.…”

Section: Dual-band Operationmentioning

confidence: 99%

Dispersion engineering with resonant‐type metamaterial transmission lines

Sisó¹,

Gil²,

Aznar³

et al. 2009

Laser & Photonics Reviews

View full text Add to dashboard Cite

Metamaterial transmission lines are artificial lines consisting on a host conventional line (such as a microstrip or a coplanar waveguide) loaded with reactive elements. The main relevant characteristic of these propagating structures is the fact that, due to the greater number of parameters (as compared to conventional lines), it is possible to tailor (engineer) their dispersion characteristics to achieve certain functionalities not achievable though conventional lines. Enhanced bandwidth components and multiband components are the main benefits of dispersion engineering with metamaterial transmission lines. In this paper, dispersion engineering will be carefully reviewed, and several examples illustrative of the application of this technique to microwave circuit design will be reported.Microwave circuits based on resonant-type metamaterial transmission lines.

show abstract

Concurrent Dual-Band Class-E Power Amplifier Using Composite Right/Left-Handed Transmission Lines

Cited by 53 publications

References 10 publications

Design of a Dual-Band Doherty Power Amplifier Utilizing Simplified Phase Offset-Lines

Design of a Dual-Band Doherty Power Amplifier Utilizing Simplified Phase Offset-Lines

Metamaterials for Wireless Communications, Radiofrequency Identification, and Sensors

Dispersion engineering with resonant‐type metamaterial transmission lines

Contact Info

Product

Resources

About