Bartlett J. G., Stebbins A, Did the universe recombine? Astrophysical Journal, vol.371, pp.8-13, 1991.
 Pritchard J. R., Loeb A., Evolution of the 21 cm signal throughout cosmic history, PRD, 78(10):103511, November 2008.
 Sunyaev R. A., Zeldovich Y. B. The spectrum of primordial radiation, its distortions and their significance., Comments on Astrophysics and Space Physics, Vol.2, pp.66-74, 1970.
 R. A. Sunyaev and J. Chluba Signals from the epoch of cosmological recombination. Astron. Nachr. / AN 330, No. 7, pp.657 - 674, 2009. [OpenAIRE]
 David M. Pozar,” Microwave Network Analysis ” in Microwave Engineering,4th ed., John Wiley & Sons.,2012,pp.181-183.
 Chandrika S, Vibhor Mahule, ACR Pillai, Atanu Mohanty, A Novel Space Cloth Using Resistor Grid Network for Radar Absorbers in Sleath Applications, International conference on Communications and Signal Processing (ICCSP), pp.83-86, 2011. [OpenAIRE]
 M. I. Astrakhan, Reflecting and Screening Properties of Plane Wire Grids, Radio Engineering, Vol. 23, No. 1, 1968.
Nivedita Mahesh received the B.E degree in Instrumentation and Control Engineering from PSG College of Technology, Coimbatore, India, in 2012.
Since 2013, she has been at the Raman Research Institute, Bangalore, India.
Ravi Subrahmanyan received the B.Tech. degree in Electrical Engineering from the Indian Institute of Technology, Madras, India, in 1983 and the Ph.D.
degree in astronomy from the Physics department of the Indian Institute of Science, Bangalore, India, in 1990. Since 2006, he has been at the Raman Research Institute, Bangalore, India.
N. Udaya Shankar received the M.Sc. degree in Physics from the Bangalore University in 1973 and Ph.D. degree in astronomy in 1986. Since 1978 he has been at the Raman Research Institute, Bangalore, India, working on the instrumentation for aperture arrays, wide-field imaging and sky surveys.
Agaram Raghunathan received the B.E. degree in Instrumentation Engineering from Bangalore Institute of Technology, in 1990 and M.Sc. Engg. (by research) from the Engineering Department of the Bangalore University, India, in 2000. Since 1990, he has been at the Raman Research Institute, Bangalore, India.