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Purpose The purpose of this paper is to gain insights about the applicability of Lean principles in software industry along with the Lean implementation issues. Design/methodology/approach Exploratory case studies have been carried out in five software companies. Data were collected by observation and semi-structured interviews with project managers. In this paper, case organizations are categorized as product vs project software development (SD) organization. Findings It is found that although Lean principles are being adopted in SD projects, application of all Lean principles is not visible. This research reveals that value and flow are more relevant in SD organizations, while value stream, pull and perfection are not conspicuous. Originality/value This paper would prove invaluable to lean practitioners and researchers to gain knowledge in lean SD. The paper puts forward the key issues that should be addressed for successful adoption of lean in SD. This study set out to determine the practitioners’ perception of the applicability of lean principles in SD projects. It provides a sound basis for further empirical research on adoption of lean principles in SD organizations.

A compact epsilon‐shaped (ε) ultra‐wideband (UWB) antenna for dual‐wideband circularly polarized (CP) applications has been investigated in this article. It consists of a stepped stub loaded modified annular ring‐shaped radiator and modified CPW ground plane. The ground plane is loaded with two semicircular notches and a spiral‐shaped slot. The impedance bandwidth (IBW) is 97.02% (10.4‐30 GHz) along with an overall footprint of 20 × 20 mm2. The fractional axial ratio bandwidth (3‐dB ARBW) for two wide bands is 38.50% (13.30‐19.64 GHz) and 6.45% (26.25‐28.00 GHz), respectively. The proposed antenna is left‐hand circularly polarized with a peak gain of about 5.09 and 5.14 dB in both 3‐dB ARBW bands. The proposed antenna is dominating other reported CP antenna structures in terms of number of CP bands, 3‐dB ARBW, IBW, peak gain, and dimensions.

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