Co-design Structure of Dual-Band LNA and Dual-Band BPF for Radio Navigation Aid Application

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Co‑design Structure of Dual‑Band LNA and Dual‑Band BPF for Radio Navigation Aid Application Gunawan Wibisono1   · Muh Wildan2 · Johan Wahyudi2 · Ego Widoro2 · Teguh Firmansyah3

© Springer Science+Business Media, LLC, part of Springer Nature 2020

Abstract In this paper, a co-design of a dual-band low-noise amplifier (DB-LNA) with a dual-band band-pass filter (DB-BPF) for a radio navigation aid (RNA) application was proposed. The novel development was that the DB-LNA was directly integrated with the DB-BPF instead of connecting the output matching network (OMN) of the DB-LNA to the 50 Ω-port of the DB-BPF. Thus, this DB-BPF had a double function, serving as the DB-BPF and also as the OMN. This architecture was called the co-design structure. ­ZIN analysis was used to evaluate the co-design network structure. In general, the design procedure was divided into four sections, including (1) DB-BPF, (2) DB-LNA, (3) Cascade DB-LNA and DB-BPF, and (4) Co-design DB-LNA and DB-BPF. The co-design method was applied in an RNA implementation at dual-band frequencies of 113 MHz and 332 MHz. Validation of the proposed structure is confirmed for its accuracy by simulating the impedance characteristic Z ­ IN, S parameter simulation, and measurement results. The key contributions of this paper were that: (1) The co-design structure could reduce the passive component by 31.5%, (2) the total size of the DB-LNA and DB-BPF using the co-design method was smaller than the cascaded method by 11.36%, (3) more light-weight in fabrication due to a smaller size, and (4) finally, the proposed LNA has a higher figure of merit than the other LNA. * Gunawan Wibisono [email protected] Muh Wildan [email protected] Johan Wahyudi [email protected] Ego Widoro [email protected] Teguh Firmansyah [email protected] 1

Department of Electrical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus Baru UI Depok, Depok 16424, Indonesia


Department of Aviation Engineering, Indonesian Civil Aviation Institute, Tangerang 15820, Banten, Indonesia


Department of Electrical Engineering, Faculty of Engineering, Universitas Sultan Ageng Tirtayasa, Cilegon 42435, Banten, Indonesia



G. Wibisono et al.

Keywords  Co-design · Dual-band LNA · Dual-band BPF · VHF · Radio navigation aid

1 Introduction In recent years, the radio wireless transceiver has had a great impact on modern society. The radio wireless transceiver includes important sub-systems, such as the antenna [1, 2] oscillator, mixer, power amplifier (PA), low noise amplifier (LNA) [3] and band-pass filter (BPF) [4]. For a single-band receiver, the design is relatively uncomplicated compared to the dual-band receiver architecture. Common receiver architectures include the heterodyne receiver, low intermediate frequency (IF) conversion, and direct conversion, where previous research has shown that their advantages and disadvantages [5, 6]. To improve the efficiency and support of the various types of communication equipment, a dual-band wir