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

2

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

3

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



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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