## 1 Introduction  
In order to satisfy the demand for huge data rates, the carrier frequency must be increased to the X band, K band, and/or millimeter-wave (MMW) (30-300 GHz) portion of the electromagnetic spectrum [1; 2]. The millimeter-wave (MMW) and terahertz (THz) bands (30 GHz to 300 GHz) are good solutions for providing high data communication rates [2; 3]. Thus, the use of millimeter wave (MMW) and THz radiation for wireless communication has increased significantly. More and more applications in wireless communication, autonomic vehicles, and space technology are based on MMW and THz radiation bands [3; 4]. Furthermore, inexpensive quasi optical components such as reflectors and mirrors, are necessary for the implementation of such MMW and THz communication channels [5; 6]. In order to fulfill requirements for massive data traffic to core cellular network in the 5 th generation of wireless communication, a fast backhaul network is required [7]. Optic fiber backhaul cannot be used in some regions due to infrastructure issues and the current microwave solution cannot fulfill the growing demands for high speed traffic channels [8]. Minature neon indicator lamps, also known as glow discharge detectors (GDDs), were found to be very sensitive and inexpensive detectors (0.3% each) for MMW and THz radiation [9; 10; 11; 12; 13; 14; 15; 16; 17; 18; 19; 20; 21; 22]. The GDD is a room temperature detector, capable of direct and heterodyne detection [14; 15; 19]. In previous studies, The NEP and responsivity of the GDD were calculated for the electronic detection system at 100 GHz and resulted in 10 nW/\(\surd\)Hz and 31 V/W respectively [9]. MMW Focal plane arrays (FPA) based on GDD pixels were constructed and experimentally demonstrated [13]. In those demonstrations, the detection mechanism of the GDD was based on slight change of the GDD electrical current as a function of the incident MMW/THz radiation [16; 17; 18]. Furthermore, upconversion of MMW power into visual light range using the GDD was demonstrated as well [9]. Operation of GDDs in upconversion mode for MMW coherent detection was also experimentally demonstrated in [23]. Many GDD neon lamps from different vendors were tested and the Gilway N523 was found to be the most responsive of them for electrical detection. In this study we present a very inexpensive MMW wireless point to point (PTP) communication channel concept (see Figure 1). The quasi-optical set up of the MMW channel was composed of two inexpensive and commercially available satellite TV dish antennae. Those satellite TV dishes were coated with metal stickers in order to ensure that the metal surface is smooth enough for use in the MMW band as shown in Figure 3a-c. The Arduino micro controller board in the transmitter side is used to encode a text message into serial bits and transfer those bits to a serial port also known as a UART (TX pin). Those serial bits were used to modulate a 100 GHz carrier wave with On-Off keying (OOK) modulation. The modulated MMW beam is then coupled out to free space using a horn antenna. The horn antenna was placed in the focal plane of an off-axis dish that collimates the MMW radiation and reflects it to a second off-axis dish that focuses the radiation on the GDD cross section. The GDD is an MMW envelope detector and it was used to detect the modulated On-OFF keying. The detected signal generated from the GDD was connected to a comparator circuit that was used to generate the proper On-OFF voltage levels that are required for detection using a second Arduino microcontroller placed on the receiver side. A computer code was used to control the Arduino microcontroller and to decode the received serial bits and present the received message. The bit rate of the transmission was set to 57,600 bps. The constructed MMW communication channel distance, z, was 15 m. However, larger distances can also be achieved using the same considerations.