Efficient truncation criterion for the parameter estimation of a stratified ground block

Abstract

This paper presents a comparative study among different biasing circuits of inductorless low-area Low Noise Amplifier (LNAs) with feedback. This study intends to determine the most suitable biasing circuit to achieve the best LNA performance for wideband applications. The main performance metrics are analyzed and a comparison is carried out based on electrical simulations. To this purpose, two different CMOS technology processes are considered: 130 nm and 90 nm. In both cases, the supply voltage is 1.2 V. The best LNA designed in 130 nm achieves a bandwidth of 2.94 GHz with a flat voltage gain (A v) of 16.5 dB and a power consumption of 3.2 mW. The same LNA topology designed in 90 nm technology has a bandwidth of 11.2 GHz, featuring a voltage gain of 16.6 dB and consuming 1.9 mW. Both LNAs are input-impedance matched and have a noise figure below 2.4 dB measured at 2.4 GHz. As a case study, the layout of the best-performance LNA circuit has been implemented in a 130 nm technology, achieving an area of 0.012 mm 2, which is near the size of a pad or an inductor. It is demonstrated that the bandwidth of this circuit can be notably increased by simply adding a small inductance in the feedback path. 1 " 2012 Elsevier Ltd.",,,,,,"10.1016/j.mejo.2012.03.014",,,"http://hdl.handle.net/20.500.12104/41168","http://www.scopus.com/inward/record.url?eid=2-s2.0-84864991626&partnerID=40&md5=c3b38e43da5201c0242f7733bc368c72",,,,,,"10",,"Microelectronics Journal",,"714

720",,"43",,"Scopus

WOS",,,,,,"Inductorless low noise amplifiers; RF CMOS integrated circuits; Wireless telecom",,,,,,"Efficient biasing circuit strategies for inductorless wideband low noise amplifiers with feedback",,"Conference Paper" "42948","123456789/35008",,"Santacruz-Ruvalcaba, F., Ctro. Investigacion Asistencia T., Division Micropropagacion M., Av. Normalistas 800 S.H., Guadalajara, Jalisco 44270, Mexico; Gutiérrez-Pulido, H., Ctro. Univ. Cie. Exact. e Ingenieria, Departamento de Matemáticas, Universidad de Guadalajara, Corregidora No. 500, Guadalajara, Jalisco, 44840, Mexico; Rodríguez-Garay, B., Ctro. Investigacion Asistencia T., Division Micropropagacion M., Av. Normalistas 800 S.H., Guadalajara, Jalisco 44270, Mexico",,"Santacruz-Ruvalcaba, F.

Gutierrez-Pulido, H.

Rodriguez-Garay, B.",,"1999",,"An efficient method for the in vitro propagation of Agave parrasana Berger, an important ornamental plant species native to the state of Coahuila, Mexico, was developed. Proliferation of good quality shoots was achieved on agar-solidified basal MS medium supplemented with L2 vitamins and 13.3 ?M benzyladenine. Rooting was successful in the basal medium with no growth regulators; however, a light intensity of 100 ?mol m-2 c-1 was found to promote better rooting that 25 ?mol m-2 s-1.",,,,,,"10.1023/A:1006232911778",,,"http://hdl.handle.net/20.500.12104/41169","http://www.scopus.com/inward/record.url?eid=2-s2.0-0345062271&partnerID=40&md5=c9ff88393c71b1d4674b123bb2c60b71",,,,,,"3",,"Plant Cell, Tissue and Organ Culture",,"163

167",,"56",,"Scopus

WOS",,,,,,"Agavaceae; Light intensity; Response surface; Tissue culture",,,,,,"Efficient in vitro propagation of Agave parrasana Berger",,"Article" "42949","123456789/35008",,"Rosas, G., State University of Guadalajara, Jalisco, PC. 44430, Mexico; Uribe, F.A., State University of Guadalajara, Jalisco, PC. 44430, Mexico; Zuniga, P., State University of Guadalajara, Jalisco, PC. 44430, Mexico",,"Rosas, G.

Uribe, F.A.

Zuniga, P.",,"2013",,"A truncation criterion to solve the vector potential integrals proposed by Takahashi and Kawase is described in this letter. The main aim of those integrals is to estimate the depth and resistivity parameters of a stratified ground block. The derivation of the proposed criterion considers the error introduced by the infinite limit truncation of the integrals. In addition, an efficient solution can be obtained by the use of the trapezoidal rule of integration. " 1986-2012 IEEE.